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units.xml
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units.xml
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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE supplementalData SYSTEM "../../common/dtd/ldmlSupplemental.dtd">
<!--
Copyright © 1991-2013 Unicode, Inc.
CLDR data files are interpreted according to the LDML specification (http://unicode.org/reports/tr35/)
For terms of use, see http://www.unicode.org/copyright.html
-->
<supplementalData>
<version number="$Revision$"/>
<unitIdComponents>
<unitIdComponent type="prefix" values="arc british dessert fluid light nautical xxx x curr"/>
<unitIdComponent type="suffix" values="force imperial luminosity mass metric person radius scandinavian troy unit it us energy density cloth length jp"/>
<unitIdComponent type="power" values="square cubic pow2 pow3 pow4 pow5 pow6 pow7 pow8 pow9 pow10 pow11 pow12 pow13 pow14 pow15"/>
<unitIdComponent type="and" values="and"/>
<unitIdComponent type="per" values="per"/>
</unitIdComponents>
<unitPrefixes>
<unitPrefix type='quecto' symbol='q' power10='-30'/>
<unitPrefix type='ronto' symbol='r' power10='-27'/>
<unitPrefix type='yocto' symbol='y' power10='-24'/>
<unitPrefix type='zepto' symbol='z' power10='-21'/>
<unitPrefix type='atto' symbol='a' power10='-18'/>
<unitPrefix type='femto' symbol='f' power10='-15'/>
<unitPrefix type='pico' symbol='p' power10='-12'/>
<unitPrefix type='nano' symbol='n' power10='-9'/>
<unitPrefix type='micro' symbol='μ' power10='-6'/>
<unitPrefix type='milli' symbol='m' power10='-3'/>
<unitPrefix type='centi' symbol='c' power10='-2'/>
<unitPrefix type='deci' symbol='d' power10='-1'/>
<unitPrefix type='deka' symbol='da' power10='1'/>
<unitPrefix type='hecto' symbol='h' power10='2'/>
<unitPrefix type='kilo' symbol='k' power10='3'/>
<unitPrefix type='mega' symbol='M' power10='6'/>
<unitPrefix type='giga' symbol='G' power10='9'/>
<unitPrefix type='tera' symbol='T' power10='12'/>
<unitPrefix type='peta' symbol='P' power10='15'/>
<unitPrefix type='exa' symbol='E' power10='18'/>
<unitPrefix type='zetta' symbol='Z' power10='21'/>
<unitPrefix type='yotta' symbol='Y' power10='24'/>
<unitPrefix type='ronna' symbol='R' power10='27'/>
<unitPrefix type='quetta' symbol='Q' power10='30'/>
<unitPrefix type='kibi' symbol='Ki' power2='10'/>
<unitPrefix type='mebi' symbol='Mi' power2='20'/>
<unitPrefix type='gibi' symbol='Gi' power2='30'/>
<unitPrefix type='tebi' symbol='Ti' power2='40'/>
<unitPrefix type='pebi' symbol='Pi' power2='50'/>
<unitPrefix type='exbi' symbol='Ei' power2='60'/>
<unitPrefix type='zebi' symbol='Zi' power2='70'/>
<unitPrefix type='yobi' symbol='Yi' power2='80'/>
</unitPrefixes>
<unitConstants>
<unitConstant constant="lb_to_kg" value="0.45359237"/>
<unitConstant constant="ft_to_m" value="0.3048"/>
<unitConstant constant="ft2_to_m2" value="ft_to_m*ft_to_m"/>
<unitConstant constant="ft3_to_m3" value="ft_to_m*ft_to_m*ft_to_m"/>
<unitConstant constant="in3_to_m3" value="ft3_to_m3/12*12*12"/>
<unitConstant constant="gal_to_m3" value="231*in3_to_m3"/>
<unitConstant constant="gal_imp_to_m3" value="0.00454609"/>
<unitConstant constant="glucose_molar_mass" value="180.1557" description="derivation from the mean atomic weights according to STANDARD ATOMIC WEIGHTS 2019 on https://ciaaw.org/atomic-weights.htm"/>
<unitConstant constant="item_per_mole" value="6.02214076E+23"/>
<unitConstant constant="speed_of_light_meters_per_second" value="299792458"/>
<unitConstant constant="sec_per_julian_year" value="31557600"/>
<unitConstant constant="meters_per_AU" value="149597870700" description="https://www.iau.org/public/themes/measuring/"/>
<unitConstant constant="sho_to_m3" value="2401/1331*1000" description="https://en.wikipedia.org/wiki/Japanese_units_of_measurement"/>
<unitConstant constant="tsubo_to_m2" value="400/121" description="https://en.wikipedia.org/wiki/Japanese_units_of_measurement"/>
<unitConstant constant="shaku_to_m" value="4/121" description="https://en.wikipedia.org/wiki/Japanese_units_of_measurement"/>
<unitConstant constant="gravity" value="9.80665"/>
<unitConstant constant="PI" value="411557987 / 131002976" status='approximate'/>
<unitConstant constant="G" value="6.67408E-11" status='approximate' description="https://arxiv.org/pdf/1510.07674.pdf see 2014 CODATA"/>
<unitConstant constant="AMU" value="1.66053878283E-27" status='approximate' description="https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-5-units-outside-si#table7"/>
</unitConstants>
<unitQuantities>
<!-- NB: quantity ordering is used in canonical order of derived units. -->
<!-- SI Base Units -->
<unitQuantity baseUnit='candela' quantity='luminous-intensity' status='simple'/>
<unitQuantity baseUnit='candela-per-square-meter' quantity='illuminance'/>
<unitQuantity baseUnit='candela-square-meter-per-square-meter' quantity='luminous-flux'/>
<unitQuantity baseUnit='kilogram' quantity='mass' status='simple'/>
<unitQuantity baseUnit='kilogram-per-kilogram' quantity='mass-fraction'/>
<unitQuantity baseUnit='kilogram-per-cubic-meter' quantity='mass-density'/>
<unitQuantity baseUnit='kilogram-per-meter-square-second' quantity='pressure'/>
<unitQuantity baseUnit='kilogram-per-square-second-ampere' quantity='magnetic-induction'/>
<unitQuantity baseUnit='kilogram-meter-per-square-second' quantity='force'/>
<unitQuantity baseUnit='kilogram-square-meter-per-cubic-second' quantity='power'/>
<unitQuantity baseUnit='kilogram-square-meter-per-cubic-second-ampere' quantity='voltage'/>
<unitQuantity baseUnit='kilogram-square-meter-per-cubic-second-square-ampere' quantity='electric-resistance'/>
<unitQuantity baseUnit='kilogram-square-meter-per-square-second' quantity='energy'/>
<unitQuantity baseUnit='kilogram-square-meter-per-square-second-ampere' quantity='magnetic-flux'/>
<unitQuantity baseUnit='kilogram-square-meter-per-square-second-square-ampere' quantity='electric-inductance'/>
<unitQuantity baseUnit='cubic-meter' quantity='volume'/>
<unitQuantity baseUnit='cubic-meter-per-kilogram' quantity='specific-volume'/>
<unitQuantity baseUnit='cubic-meter-per-meter' quantity='consumption'/>
<unitQuantity baseUnit='square-meter' quantity='area'/>
<unitQuantity baseUnit='square-meter-per-square-second' quantity='ionizing-radiation'/>
<unitQuantity baseUnit='meter' quantity='length' status='simple'/>
<unitQuantity baseUnit='meter-per-second' quantity='speed'/>
<unitQuantity baseUnit='meter-per-square-second' quantity='acceleration'/>
<unitQuantity baseUnit='kilogram-per-square-meter-square-second' quantity='pressure-per-length'/> <!-- special ordering for ofhg -->
<unitQuantity baseUnit='pow4-second-square-ampere-per-kilogram-square-meter' quantity='electric-capacitance'/>
<unitQuantity baseUnit='cubic-second-square-ampere-per-kilogram-square-meter' quantity='electric-conductance'/>
<unitQuantity baseUnit='second' quantity='duration' status='simple'/> <!-- use duration because 'time' can mean absolute time -->
<unitQuantity baseUnit='second-ampere' quantity='electric-charge'/>
<!-- special duration, because months..years are not comparable to seconds -->
<unitQuantity baseUnit='year' quantity='year-duration' status='simple'/> <!-- non-SI but here for ordering -->
<!-- special duration, because nights are not comparable to seconds -->
<unitQuantity baseUnit='night' quantity='night-duration' status='simple'/>
<unitQuantity baseUnit='ampere' quantity='electric-current' status='simple'/>
<unitQuantity baseUnit='ampere-per-square-meter' quantity='current-density'/>
<unitQuantity baseUnit='ampere-per-meter' quantity='magnetic-field-strength'/>
<unitQuantity baseUnit='kelvin' quantity='temperature' status='simple'/>
<!-- Non-SI base units -->
<unitQuantity baseUnit='square-revolution' quantity='solid-angle'/> <!-- use for base instead of radian, to avoid rounding -->
<unitQuantity baseUnit='revolution' quantity='angle' status='simple'/> <!-- use for base instead of radian, to avoid rounding -->
<unitQuantity baseUnit='revolution-per-meter' quantity='wave-number'/>
<unitQuantity baseUnit='revolution-per-second' quantity='frequency'/>
<unitQuantity baseUnit='item' quantity='substance-amount' status='simple'/> <!-- use instead of mole -->
<unitQuantity baseUnit='item-per-kilogram' quantity='concentration-mass'/>
<unitQuantity baseUnit='item-per-cubic-meter' quantity='concentration'/>
<unitQuantity baseUnit='item-per-second' quantity='catalytic-activity'/>
<unitQuantity baseUnit='per-second' quantity='radioactivity'/>
<unitQuantity baseUnit='portion' quantity='portion' status='simple'/>
<unitQuantity baseUnit='bit' quantity='digital' status='simple'/>
<unitQuantity baseUnit='pixel' quantity='graphics' status='simple'/>
<unitQuantity baseUnit='pixel-per-meter' quantity='resolution'/>
<unitQuantity baseUnit='em' quantity='typewidth' status='simple'/>
</unitQuantities>
<convertUnits>
<!-- Values where possible from:
a) NIST Special Publication 1038
https://www.govinfo.gov/content/pkg/GOVPUB-C13-f10c2ff9e7af2091314396a2d53213e4/pdf/GOVPUB-C13-f10c2ff9e7af2091314396a2d53213e4.pdf
b) https://arxiv.org/pdf/1510.07674.pdf
See also https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-4-two-classes-si-units-and-si-prefixes
-->
<!-- luminous-intensity -->
<convertUnit source='candela' baseUnit='candela' systems="si metric prefixable"/>
<!-- mass -->
<convertUnit source='dalton' baseUnit='kilogram' factor='AMU' systems="si_acceptable metric prefixable"/>
<convertUnit source='grain' baseUnit='kilogram' factor='lb_to_kg/7000' systems="ussystem uksystem"/>
<convertUnit source='carat' baseUnit='kilogram' factor='0.0002' systems="metric_adjacent ussystem uksystem"/>
<convertUnit source='gram' baseUnit='kilogram' factor='0.001' systems="si metric prefixable"/>
<convertUnit source='ounce' baseUnit='kilogram' factor='lb_to_kg/16' systems="ussystem uksystem"/>
<convertUnit source='ounce-troy' baseUnit='kilogram' factor='0.03110348' systems="ussystem uksystem"/>
<convertUnit source='pound' baseUnit='kilogram' factor='lb_to_kg' systems="ussystem uksystem"/>
<convertUnit source='kilogram' baseUnit='kilogram' systems="si metric"/>
<convertUnit source='stone' baseUnit='kilogram' factor='lb_to_kg*14' systems="uksystem"/>
<convertUnit source='slug' baseUnit='kilogram' factor='lb_to_kg*gravity/ft_to_m' systems="ussystem uksystem"/>
<convertUnit source='ton' baseUnit='kilogram' factor='lb_to_kg*2000' systems="ussystem uksystem"/>
<convertUnit source='tonne' baseUnit='kilogram' factor='1000' systems="si_acceptable metric prefixable"/>
<convertUnit source='earth-mass' baseUnit='kilogram' factor='5.9722E+24' systems="astronomical"/>
<convertUnit source='solar-mass' baseUnit='kilogram' factor='1.98847E+30' systems="astronomical"/>
<!-- volume -->
<convertUnit source='drop' baseUnit='cubic-meter' factor='gal_to_m3/128*576' systems="ussystem"/>
<convertUnit source='pinch' baseUnit='cubic-meter' factor='gal_to_m3/128*128' systems="ussystem"/>
<convertUnit source='dessert-spoon' baseUnit='cubic-meter' factor='gal_to_m3/16*128' systems="ussystem"/>
<convertUnit source='dessert-spoon-imperial' baseUnit='cubic-meter' factor='gal_imp_to_m3/16*128' systems="uksystem"/>
<convertUnit source='dram' baseUnit='cubic-meter' factor='gal_to_m3/128*8' systems="ussystem"/>
<convertUnit source='teaspoon' baseUnit='cubic-meter' factor='gal_to_m3/16*48' systems="ussystem"/>
<convertUnit source='tablespoon' baseUnit='cubic-meter' factor='gal_to_m3/256' systems="ussystem"/>
<convertUnit source='fluid-ounce-imperial' baseUnit='cubic-meter' factor='gal_imp_to_m3/160' systems="uksystem"/>
<convertUnit source='fluid-ounce' baseUnit='cubic-meter' factor='gal_to_m3/128' systems="ussystem"/>
<convertUnit source='jigger' baseUnit='cubic-meter' factor='gal_to_m3*3/128*2' systems="ussystem"/>
<convertUnit source='cup' baseUnit='cubic-meter' factor='gal_to_m3/16' systems="ussystem"/>
<convertUnit source='cup-metric' baseUnit='cubic-meter' factor='0.00025' systems="metric_adjacent"/>
<convertUnit source='pint' baseUnit='cubic-meter' factor='gal_to_m3/8' systems="ussystem"/>
<convertUnit source='pint-metric' baseUnit='cubic-meter' factor='0.0005' systems="metric_adjacent"/>
<convertUnit source='pint-imperial' baseUnit='cubic-meter' factor='gal_imp_to_m3/8' systems="uksystem"/>
<convertUnit source='quart' baseUnit='cubic-meter' factor='gal_to_m3/4' systems="ussystem"/>
<convertUnit source='liter' baseUnit='cubic-meter' factor='0.001' systems="si_acceptable metric prefixable"/>
<convertUnit source='quart-imperial' baseUnit='cubic-meter' factor='gal_imp_to_m3/4' systems="uksystem"/>
<convertUnit source='gallon' baseUnit='cubic-meter' factor='gal_to_m3' systems="ussystem"/>
<convertUnit source='gallon-imperial' baseUnit='cubic-meter' factor='gal_imp_to_m3' systems="uksystem"/>
<convertUnit source='bushel' baseUnit='cubic-meter' factor='2150.42*in3_to_m3' systems="ussystem"/>
<convertUnit source='barrel' baseUnit='cubic-meter' factor='42*gal_to_m3' systems="ussystem"/> <!-- oil -->
<!-- area -->
<convertUnit source='dunam' baseUnit='square-meter' factor='1000' systems="metric_adjacent"/>
<convertUnit source='acre' baseUnit='square-meter' factor='ft2_to_m2 * 43560' systems="ussystem uksystem"/>
<convertUnit source='hectare' baseUnit='square-meter' factor='10000' systems="si_acceptable metric"/>
<!-- length -->
<convertUnit source='point' baseUnit='meter' factor='ft_to_m/864' systems="metric_adjacent ussystem uksystem"/>
<convertUnit source='inch' baseUnit='meter' factor='ft_to_m/12' systems="ussystem uksystem"/>
<convertUnit source='foot' baseUnit='meter' factor='ft_to_m' systems="ussystem uksystem"/>
<convertUnit source='yard' baseUnit='meter' factor='ft_to_m*3' systems="ussystem uksystem"/>
<convertUnit source='meter' baseUnit='meter' systems="si metric prefixable"/>
<convertUnit source='fathom' baseUnit='meter' factor='ft_to_m * 6' systems="ussystem uksystem"/>
<convertUnit source='rod' baseUnit='meter' factor='ft_to_m*16.5' systems="ussystem uksystem"/>
<convertUnit source='chain' baseUnit='meter' factor='ft_to_m*66' systems="ussystem uksystem"/>
<convertUnit source='furlong' baseUnit='meter' factor='ft_to_m*660' systems="ussystem uksystem"/>
<convertUnit source='mile' baseUnit='meter' factor='ft_to_m*5280' systems="ussystem uksystem"/>
<convertUnit source='nautical-mile' baseUnit='meter' factor='1852' systems="ussystem uksystem si_acceptable"/>
<convertUnit source='mile-scandinavian' baseUnit='meter' factor='10000' systems="metric_adjacent"/>
<convertUnit source='100-kilometer' baseUnit='meter' factor='100000' systems="si metric"/>
<convertUnit source='earth-radius' baseUnit='meter' factor='6.3781E6' systems="astronomical"/>
<convertUnit source='solar-radius' baseUnit='meter' factor='695700000' systems="astronomical"/>
<convertUnit source='astronomical-unit' baseUnit='meter' factor='meters_per_AU' systems="astronomical si_acceptable"/>
<convertUnit source='light-year' baseUnit='meter' factor='speed_of_light_meters_per_second*sec_per_julian_year' systems="astronomical"/>
<convertUnit source='parsec' baseUnit='meter' factor='meters_per_AU*60*60*180/PI' systems="astronomical prefixable"/> <!-- https://www.iau.org/public/themes/measuring/ distance where 1 AU subtends 1 arcsecond -->
<!-- time -->
<convertUnit source='second' baseUnit='second' systems="si metric prefixable ussystem uksystem astronomical"/>
<convertUnit source='minute' baseUnit='second' factor='60' systems="si_acceptable metric_adjacent prefixable ussystem uksystem astronomical"/>
<convertUnit source='hour' baseUnit='second' factor='3600' systems="si_acceptable metric_adjacent prefixable ussystem uksystem astronomical"/>
<convertUnit source='day' baseUnit='second' factor='86400' systems="si_acceptable metric_adjacent prefixable ussystem uksystem astronomical"/>
<convertUnit source='day-person' baseUnit='second' factor='86400' systems="person_age"/>
<convertUnit source='week' baseUnit='second' factor='86400*7' systems="metric_adjacent ussystem uksystem astronomical"/>
<convertUnit source='week-person' baseUnit='second' factor='86400*7' systems="person_age"/>
<convertUnit source='fortnight' baseUnit='second' factor='86400*14' systems="ussystem uksystem"/>
<!-- year-duration -->
<convertUnit source='month' baseUnit='year' factor='1/12' systems="metric_adjacent ussystem uksystem astronomical"/>
<convertUnit source='month-person' baseUnit='year' factor='1/12' systems="person_age"/>
<convertUnit source='quarter' baseUnit='year' factor='1/4' systems="metric_adjacent"/>
<convertUnit source='year' baseUnit='year' systems="metric_adjacent prefixable ussystem uksystem astronomical"/>
<convertUnit source='year-person' baseUnit='year' systems="person_age"/>
<convertUnit source='decade' baseUnit='year' factor='10' systems="metric_adjacent ussystem uksystem astronomical"/>
<convertUnit source='century' baseUnit='year' factor='100' systems="metric_adjacent ussystem uksystem astronomical"/>
<!-- night-duration -->
<convertUnit source='night' baseUnit='night' systems="metric_adjacent uksystem ussystem"/>
<!-- electric-current -->
<convertUnit source='ampere' baseUnit='ampere' systems="si metric prefixable"/>
<!-- temperature -->
<convertUnit source='rankine' baseUnit='kelvin' factor='5/9' systems="ussystem uksystem"/>
<convertUnit source='fahrenheit' baseUnit='kelvin' factor='5/9' offset='2298.35/9' systems="ussystem uksystem"/>
<convertUnit source='kelvin' baseUnit='kelvin' systems="si metric prefixable"/>
<convertUnit source='celsius' baseUnit='kelvin' offset='273.15' systems="si metric"/>
<!-- angle -->
<convertUnit source='arc-second' baseUnit='revolution' factor='1/360*60*60' systems="si_acceptable metric_adjacent ussystem uksystem astronomical"/>
<convertUnit source='arc-minute' baseUnit='revolution' factor='1/360*60' systems="si_acceptable metric_adjacent ussystem uksystem astronomical"/>
<convertUnit source='degree' baseUnit='revolution' factor='1/360' systems="si_acceptable metric_adjacent ussystem uksystem astronomical"/>
<convertUnit source='radian' baseUnit='revolution' factor='1/2*PI' systems="si metric"/>
<convertUnit source='revolution' baseUnit='revolution' systems="metric_adjacent ussystem uksystem"/>
<!-- substance-amount -->
<convertUnit source='item' baseUnit='item' systems="metric_adjacent ussystem uksystem"/>
<convertUnit source='mole' baseUnit='item' factor='item_per_mole' systems="si metric prefixable"/>
<!-- portion -->
<convertUnit source='permillion' baseUnit='portion' factor='1/1000000' systems="metric_adjacent ussystem uksystem"/>
<convertUnit source='permyriad' baseUnit='portion' factor='1/10000' systems="metric_adjacent ussystem uksystem"/>
<convertUnit source='permille' baseUnit='portion' factor='1/1000' systems="metric_adjacent ussystem uksystem"/>
<convertUnit source='percent' baseUnit='portion' factor='1/100' systems="metric_adjacent ussystem uksystem"/>
<convertUnit source='karat' baseUnit='portion' factor='1/24' systems="metric_adjacent ussystem uksystem"/>
<convertUnit source='portion' baseUnit='portion' systems="metric_adjacent ussystem uksystem"/>
<!-- digital -->
<convertUnit source='bit' baseUnit='bit' systems="metric_adjacent prefixable ussystem uksystem"/>
<convertUnit source='byte' baseUnit='bit' factor='8' systems="metric_adjacent prefixable ussystem uksystem"/>
<!-- graphics -->
<convertUnit source='dot' baseUnit='pixel' systems="metric_adjacent ussystem uksystem"/>
<convertUnit source='pixel' baseUnit='pixel' systems="metric_adjacent ussystem uksystem prefixable"/>
<!-- typewidth -->
<convertUnit source='em' baseUnit='em' systems="metric_adjacent ussystem uksystem"/>
<!-- frequency -->
<convertUnit source='hertz' baseUnit='revolution-per-second' systems="si metric prefixable"/>
<!-- force -->
<convertUnit source='newton' baseUnit='kilogram-meter-per-square-second' systems="si metric prefixable"/>
<convertUnit source='pound-force' baseUnit='kilogram-meter-per-square-second' factor='lb_to_kg * gravity' systems="ussystem uksystem"/>
<convertUnit source='kilogram-force' baseUnit='kilogram-meter-per-square-second' factor='gravity' systems='metric_adjacent'/>
<!-- pressure -->
<convertUnit source='pascal' baseUnit='kilogram-per-meter-square-second' systems="si metric prefixable"/>
<convertUnit source='bar' baseUnit='kilogram-per-meter-square-second' factor='100000' systems="si_acceptable metric prefixable"/>
<convertUnit source='atmosphere' baseUnit='kilogram-per-meter-square-second' factor='101325' systems="ussystem uksystem "/>
<convertUnit source='gasoline-energy-density' baseUnit='kilogram-per-meter-square-second' factor='33.705 * 3600 * 1000/gal_to_m3' systems="ussystem uksystem" description="Constructed so that 1 gallon-gasoline-energy-density = 33.705 kWh as per https://www3.epa.gov/otaq/gvg/learn-more-technology.htm"/>
<!-- pressure-per-length -->
<convertUnit source='ofhg' baseUnit='kilogram-per-square-meter-square-second' factor='13595.1*gravity' systems="metric_adjacent uksystem ussystem"/>
<!-- energy -->
<convertUnit source='electronvolt' baseUnit='kilogram-square-meter-per-square-second' factor='1.602177E-19' systems='si_acceptable metric_adjacent'/>
<convertUnit source='joule' baseUnit='kilogram-square-meter-per-square-second' systems="si metric prefixable"/>
<convertUnit source='calorie' baseUnit='kilogram-square-meter-per-square-second' factor='4.184' systems="metric_adjacent prefixable"/> <!-- th -->
<convertUnit source='calorie-it' baseUnit='kilogram-square-meter-per-square-second' factor='4.1868' systems="metric_adjacent prefixable"/> <!-- th -->
<convertUnit source='british-thermal-unit' baseUnit='kilogram-square-meter-per-square-second' factor='4.184*2267.96185/9' systems="ussystem uksystem"/> <!-- th -->
<convertUnit source='british-thermal-unit-it' baseUnit='kilogram-square-meter-per-square-second' factor='4.1868*2267.96185/9' systems="ussystem uksystem"/> <!-- th -->
<convertUnit source='foodcalorie' baseUnit='kilogram-square-meter-per-square-second' factor='4184' systems="ussystem uksystem"/> <!-- th -->
<convertUnit source='therm-us' baseUnit='kilogram-square-meter-per-square-second' factor='105480400' systems="ussystem"/>
<!-- power -->
<convertUnit source='watt' baseUnit='kilogram-square-meter-per-cubic-second' systems="si metric prefixable"/>
<convertUnit source='horsepower' baseUnit='kilogram-square-meter-per-cubic-second' factor='ft_to_m * lb_to_kg * gravity * 550' systems="ussystem uksystem"/>
<convertUnit source='solar-luminosity' baseUnit='kilogram-square-meter-per-cubic-second' factor='3.828E+26' systems="astronomical"/>
<!-- voltage -->
<convertUnit source='volt' baseUnit='kilogram-square-meter-per-cubic-second-ampere' systems="si metric prefixable"/>
<!-- electric-resistance -->
<convertUnit source='ohm' baseUnit='kilogram-square-meter-per-cubic-second-square-ampere' systems="si metric prefixable"/>
<!-- electric-charge -->
<convertUnit source='coulomb' baseUnit='second-ampere' systems="si metric prefixable"/>
<!-- electric-capacitance -->
<convertUnit source='farad' baseUnit='pow4-second-square-ampere-per-kilogram-square-meter' factor='1' systems="si metric prefixable"/>
<!-- electric-inductance -->
<convertUnit source='henry' baseUnit='kilogram-square-meter-per-square-second-square-ampere' systems="si metric prefixable"/>
<!-- electric-conductance -->
<convertUnit source='siemens' baseUnit='cubic-second-square-ampere-per-kilogram-square-meter' systems="si metric prefixable"/>
<!-- radioactivity -->
<convertUnit source='becquerel' baseUnit='per-second' systems="si metric prefixable"/>
<!-- ionizing-radiation -->
<convertUnit source='gray' baseUnit='square-meter-per-square-second' systems="si metric prefixable"/>
<convertUnit source='sievert' baseUnit='square-meter-per-square-second' systems="si metric prefixable"/>
<!-- catalytic-activity -->
<convertUnit source='katal' baseUnit='item-per-second' factor='item_per_mole' systems="si metric"/>
<!-- solid-angle -->
<convertUnit source='steradian' baseUnit='square-revolution' factor='1/4*PI*PI' systems='si metric'/>
<!-- speed -->
<convertUnit source='knot' baseUnit='meter-per-second' factor='1852/3600' systems="ussystem uksystem si_acceptable"/>
<convertUnit source='light-speed' baseUnit='meter-per-second' factor='speed_of_light_meters_per_second' systems="ussystem uksystem si_acceptable"/>
<convertUnit source='beaufort' baseUnit='meter-per-second' special='beaufort' systems="metric_adjacent"/>
<!-- magnetic-induction -->
<convertUnit source='tesla' baseUnit='kilogram-per-square-second-ampere' systems='si metric prefixable'/>
<!-- magnetic-flux -->
<convertUnit source='weber' baseUnit='kilogram-square-meter-per-square-second-ampere' systems='si metric prefixable'/>
<!-- acceleration -->
<convertUnit source='g-force' baseUnit='meter-per-square-second' factor='gravity' systems="metric_adjacent ussystem uksystem"/>
<!-- luminance -->
<convertUnit source='lux' baseUnit='candela-per-square-meter' systems="si metric prefixable"/>
<!-- luminous-flux -->
<convertUnit source='lumen' baseUnit='candela-square-meter-per-square-meter' systems="si metric prefixable"/>
<!-- concentration-mass -->
<convertUnit source='ofglucose' baseUnit='item-per-kilogram' factor='1000*item_per_mole/glucose_molar_mass' systems="metric_adjacent"/>
<!-- japanese additions -->
<convertUnit source='rin' baseUnit='meter' factor='shaku_to_m/1000' systems="jpsystem"/>
<convertUnit source='sun' baseUnit='meter' factor='shaku_to_m/10' systems="jpsystem"/>
<convertUnit source='shaku-length' baseUnit='meter' factor='shaku_to_m' systems="jpsystem"/>
<convertUnit source='shaku-cloth' baseUnit='meter' factor='shaku_to_m*5/4' systems="jpsystem"/>
<convertUnit source='ken' baseUnit='meter' factor='shaku_to_m*6' systems="jpsystem"/>
<convertUnit source='jo-jp' baseUnit='meter' factor='shaku_to_m*10' systems="jpsystem"/>
<convertUnit source='ri-jp' baseUnit='meter' factor='shaku_to_m*12960' systems="jpsystem"/>
<convertUnit source='bu-jp' baseUnit='square-meter' factor='tsubo_to_m2*1' systems="jpsystem"/>
<convertUnit source='se-jp' baseUnit='square-meter' factor='tsubo_to_m2*30' systems="jpsystem"/>
<convertUnit source='cho' baseUnit='square-meter' factor='tsubo_to_m2*3000' systems="jpsystem"/>
<convertUnit source='kosaji' baseUnit='cubic-meter' factor='1*5*0.000001' systems="jpsystem"/>
<convertUnit source='osaji' baseUnit='cubic-meter' factor='1*15*0.000001' systems="jpsystem"/>
<convertUnit source='cup-jp' baseUnit='cubic-meter' factor='1*100*0.000001' systems="jpsystem"/>
<convertUnit source='shaku' baseUnit='cubic-meter' factor='sho_to_m3/100' systems="jpsystem"/>
<convertUnit source='sai' baseUnit='cubic-meter' factor='sho_to_m3/1000' systems="jpsystem"/>
<convertUnit source='to-jp' baseUnit='cubic-meter' factor='sho_to_m3*10' systems="jpsystem"/>
<convertUnit source='koku' baseUnit='cubic-meter' factor='sho_to_m3*100' systems="jpsystem"/>
<convertUnit source='fun' baseUnit='kilogram' factor='1*3/8000' systems="jpsystem"/>
</convertUnits>
<unitPreferenceData draft="contributed">
<unitPreferences category="area" usage="default">
<unitPreference regions="001">square-kilometer</unitPreference>
<unitPreference regions="001">hectare</unitPreference>
<unitPreference regions="001">square-meter</unitPreference>
<unitPreference regions="001">square-centimeter</unitPreference>
<unitPreference regions="US GB">square-mile</unitPreference>
<unitPreference regions="US GB">acre</unitPreference>
<unitPreference regions="US GB">square-foot</unitPreference>
<unitPreference regions="US GB">square-inch</unitPreference>
</unitPreferences>
<unitPreferences category="area" usage="geograph">
<unitPreference regions="001">square-kilometer</unitPreference>
<unitPreference regions="US GB">square-mile</unitPreference>
</unitPreferences>
<unitPreferences category="area" usage="land">
<unitPreference regions="001">hectare</unitPreference>
<unitPreference regions="US GB">acre</unitPreference>
</unitPreferences>
<unitPreferences category="area" usage="floor">
<unitPreference regions="001">square-meter</unitPreference>
<unitPreference regions="CA US GB MM">square-foot</unitPreference>
</unitPreferences>
<unitPreferences category="concentration" usage="blood-glucose">
<unitPreference regions="AG AI AO AU BA BG BH BM BN BW BY CA CH CM CN CZ DK DM EE FI FJ GB GD HK HR HU IE IM IS KE KN KW KZ LC LI LT LU LV ME MG MK MO MS MT MU MY MZ NA NL NO NZ OM PG RS RU SE SG SI SK TC TO UA UG VC VG VN VU ZA">millimole-per-liter</unitPreference>
<unitPreference regions="001">milligram-ofglucose-per-deciliter</unitPreference>
</unitPreferences>
<unitPreferences category="concentration" usage="default">
<unitPreference regions="001">item-per-cubic-meter</unitPreference>
</unitPreferences>
<unitPreferences category="consumption" usage="default">
<unitPreference regions="001">liter-per-100-kilometer</unitPreference>
</unitPreferences>
<unitPreferences category="consumption" usage="vehicle-fuel">
<unitPreference regions="001">liter-per-100-kilometer</unitPreference>
<unitPreference regions="BR IT JP KR MX MY NL TH TR">liter-per-kilometer</unitPreference>
<unitPreference regions="US">mile-per-gallon</unitPreference>
<unitPreference regions="CA GB">mile-per-gallon-imperial</unitPreference>
</unitPreferences>
<unitPreferences category="duration" usage="default">
<unitPreference regions="001">day</unitPreference>
<unitPreference regions="001">hour</unitPreference>
<unitPreference regions="001">minute</unitPreference>
<unitPreference regions="001">second</unitPreference>
<unitPreference regions="001">millisecond</unitPreference>
<unitPreference regions="001">microsecond</unitPreference>
<unitPreference regions="001">nanosecond</unitPreference>
</unitPreferences>
<unitPreferences category="duration" usage="media">
<unitPreference regions="001">minute-and-second</unitPreference>
<unitPreference regions="001">second</unitPreference>
</unitPreferences>
<unitPreferences category="energy" usage="default">
<unitPreference regions="001">kilowatt-hour</unitPreference>
</unitPreferences>
<unitPreferences category="energy" usage="food">
<unitPreference regions="US">foodcalorie</unitPreference>
<unitPreference regions="001">kilocalorie</unitPreference>
</unitPreferences>
<unitPreferences category="length" usage="default">
<unitPreference regions="001">kilometer</unitPreference>
<unitPreference regions="001">meter</unitPreference>
<unitPreference regions="001">centimeter</unitPreference>
<unitPreference regions="US GB">mile</unitPreference>
<unitPreference regions="US GB">foot</unitPreference>
<unitPreference regions="US GB">inch</unitPreference>
</unitPreferences>
<unitPreferences category="length" usage="focal-length">
<unitPreference regions="001">millimeter</unitPreference>
</unitPreferences>
<unitPreferences category="length" usage="person">
<unitPreference regions="001">centimeter</unitPreference>
<unitPreference regions="CA GB IN US">inch</unitPreference>
</unitPreferences>
<unitPreferences category="length" usage="person-height">
<unitPreference regions="001">centimeter</unitPreference>
<unitPreference regions="CA GB IN US" geq="3.0">foot-and-inch</unitPreference>
<unitPreference regions="CA GB IN US">inch</unitPreference>
<unitPreference regions="AT BE DZ EG ES FR HK ID IL IT JO MY SA SE TR VN">meter-and-centimeter</unitPreference>
</unitPreferences>
<unitPreferences category="length" usage="rainfall">
<unitPreference regions="BR">centimeter</unitPreference>
<unitPreference regions="US">inch</unitPreference>
<unitPreference regions="001">millimeter</unitPreference>
</unitPreferences>
<unitPreferences category="length" usage="road">
<unitPreference regions="001" geq="0.9">kilometer</unitPreference>
<unitPreference regions="001" geq="300.0" skeleton="precision-increment/50">meter</unitPreference>
<unitPreference regions="001" geq="10" skeleton="precision-increment/10">meter</unitPreference>
<unitPreference regions="001" skeleton="precision-increment/1">meter</unitPreference>
<unitPreference regions="US" geq="0.5">mile</unitPreference>
<unitPreference regions="US" geq="100.0" skeleton="precision-increment/50">foot</unitPreference>
<unitPreference regions="US" geq="10" skeleton="precision-increment/10">foot</unitPreference>
<unitPreference regions="US" skeleton="precision-increment/1">foot</unitPreference>
<unitPreference regions="GB" geq="0.5">mile</unitPreference>
<unitPreference regions="GB" geq="100.0" skeleton="precision-increment/50">yard</unitPreference>
<unitPreference regions="GB" geq="10" skeleton="precision-increment/10">yard</unitPreference>
<unitPreference regions="GB" skeleton="precision-increment/1">yard</unitPreference>
<unitPreference regions="SE">mile-scandinavian</unitPreference>
<unitPreference regions="SE">kilometer</unitPreference>
<unitPreference regions="SE" geq="300.0" skeleton="precision-increment/50">meter</unitPreference>
<unitPreference regions="SE" geq="10" skeleton="precision-increment/10">meter</unitPreference>
<unitPreference regions="SE" skeleton="precision-increment/1">meter</unitPreference>
</unitPreferences>
<unitPreferences category="length" usage="snowfall">
<unitPreference regions="001">centimeter</unitPreference>
<unitPreference regions="US">inch</unitPreference>
</unitPreferences>
<unitPreferences category="length" usage="vehicle">
<unitPreference regions="GB US">foot-and-inch</unitPreference>
<unitPreference regions="001">meter</unitPreference>
</unitPreferences>
<unitPreferences category="length" usage="visiblty">
<unitPreference regions="001" geq="0.1">kilometer</unitPreference>
<unitPreference regions="001">meter</unitPreference>
<unitPreference regions="DE NL">meter</unitPreference>
<unitPreference regions="GB US">mile</unitPreference>
<unitPreference regions="GB US">foot</unitPreference>
</unitPreferences>
<unitPreferences category="mass" usage="default">
<unitPreference regions="001">tonne</unitPreference>
<unitPreference regions="001">kilogram</unitPreference>
<unitPreference regions="001">gram</unitPreference>
<unitPreference regions="001">milligram</unitPreference>
<unitPreference regions="001">microgram</unitPreference>
<unitPreference regions="US GB">ton</unitPreference>
<unitPreference regions="US GB">pound</unitPreference>
<unitPreference regions="US GB">ounce</unitPreference>
</unitPreferences>
<unitPreferences category="mass" usage="person">
<unitPreference regions="001">kilogram</unitPreference>
<unitPreference regions="001">gram</unitPreference>
<unitPreference regions="US">pound</unitPreference>
<unitPreference regions="US">pound-and-ounce</unitPreference>
<unitPreference regions="GB">stone-and-pound</unitPreference>
<unitPreference regions="GB">pound-and-ounce</unitPreference>
<unitPreference regions="HK">pound-and-ounce</unitPreference>
</unitPreferences>
<unitPreferences category="mass-density" usage="default">
<unitPreference regions="001">kilogram-per-cubic-meter</unitPreference>
</unitPreferences>
<unitPreferences category="power" usage="default">
<unitPreference regions="001">gigawatt</unitPreference>
<unitPreference regions="001">megawatt</unitPreference>
<unitPreference regions="001">kilowatt</unitPreference>
<unitPreference regions="001">watt</unitPreference>
<unitPreference regions="001">milliwatt</unitPreference>
</unitPreferences>
<unitPreferences category="power" usage="engine">
<unitPreference regions="001">kilowatt</unitPreference>
<unitPreference regions="US GB">horsepower</unitPreference>
</unitPreferences>
<unitPreferences category="pressure" usage="baromtrc">
<unitPreference regions="001">hectopascal</unitPreference>
<unitPreference regions="US">inch-ofhg</unitPreference>
<unitPreference regions="BR EG GB IL TH">millibar</unitPreference>
<unitPreference regions="MX RU">millimeter-ofhg</unitPreference>
</unitPreferences>
<unitPreferences category="pressure" usage="default">
<unitPreference regions="001">megapascal</unitPreference>
<unitPreference regions="001">pascal</unitPreference>
<unitPreference regions="US GB">pound-force-per-square-inch</unitPreference>
</unitPreferences>
<unitPreferences category="speed" usage="default">
<unitPreference regions="001">kilometer-per-hour</unitPreference>
<unitPreference regions="GB US">mile-per-hour</unitPreference>
</unitPreferences>
<unitPreferences category="speed" usage="rainfall">
<unitPreference regions="001">millimeter-per-hour</unitPreference>
<unitPreference regions="BR">centimeter-per-hour</unitPreference>
<unitPreference regions="US">inch-per-hour</unitPreference>
</unitPreferences>
<unitPreferences category="speed" usage="snowfall">
<unitPreference regions="001">centimeter-per-hour</unitPreference>
<unitPreference regions="US">inch-per-hour</unitPreference>
</unitPreferences>
<unitPreferences category="speed" usage="wind">
<unitPreference regions="001">kilometer-per-hour</unitPreference>
<unitPreference regions="CN DK FI JP KR NO PL RU SE">meter-per-second</unitPreference>
<unitPreference regions="GB US">mile-per-hour</unitPreference>
</unitPreferences>
<unitPreferences category="temperature" usage="default">
<unitPreference regions="001">celsius</unitPreference>
<unitPreference regions="US">fahrenheit</unitPreference>
</unitPreferences>
<unitPreferences category="temperature" usage="weather">
<unitPreference regions="001">celsius</unitPreference>
<unitPreference regions="BS BZ KY PR PW US">fahrenheit</unitPreference>
</unitPreferences>
<unitPreferences category="volume" usage="default">
<unitPreference regions="001">cubic-meter</unitPreference>
<unitPreference regions="001">cubic-centimeter</unitPreference>
<unitPreference regions="US GB">cubic-foot</unitPreference>
<unitPreference regions="US GB">cubic-inch</unitPreference>
</unitPreferences>
<unitPreferences category="volume" usage="fluid">
<unitPreference regions="001">liter</unitPreference>
<unitPreference regions="001">milliliter</unitPreference>
<unitPreference regions="US">gallon</unitPreference>
<unitPreference regions="US">quart</unitPreference>
<unitPreference regions="US">pint</unitPreference>
<unitPreference regions="US">cup</unitPreference>
<unitPreference regions="US">fluid-ounce</unitPreference>
<unitPreference regions="US">tablespoon</unitPreference>
<unitPreference regions="US">teaspoon</unitPreference>
<unitPreference regions="GB">gallon-imperial</unitPreference>
<unitPreference regions="GB">fluid-ounce-imperial</unitPreference>
</unitPreferences>
<unitPreferences category="volume" usage="oil">
<unitPreference regions="001">barrel</unitPreference>
</unitPreferences>
<unitPreferences category="volume" usage="vehicle">
<unitPreference regions="US">gallon</unitPreference>
<unitPreference regions="001">liter</unitPreference>
</unitPreferences>
<unitPreferences category="year-duration" usage="default">
<unitPreference regions="001">year</unitPreference>
<unitPreference regions="001">month</unitPreference>
</unitPreferences>
<unitPreferences category="year-duration" usage="person-age">
<unitPreference regions="001" geq="2.5">year-person</unitPreference>
<unitPreference regions="001">year-person-and-month-person</unitPreference>
<unitPreference regions="001">month-person</unitPreference>
</unitPreferences>
</unitPreferenceData>
<metadata>
<alias>
<unitAlias type="inch-hg" replacement="inch-ofhg" reason="deprecated"/>
<unitAlias type="liter-per-100kilometers" replacement="liter-per-100-kilometer" reason="deprecated"/>
<unitAlias type="meter-per-second-squared" replacement="meter-per-square-second" reason="deprecated"/>
<unitAlias type="millimeter-of-mercury" replacement="millimeter-ofhg" reason="deprecated"/>
<unitAlias type="part-per-million" replacement="permillion" reason="deprecated"/>
<unitAlias type="pound-foot" replacement="pound-force-foot" reason="deprecated"/>
<unitAlias type="pound-per-square-inch" replacement="pound-force-per-square-inch" reason="deprecated"/>
<unitAlias type="milligram-per-deciliter" replacement="milligram-ofglucose-per-deciliter" reason="deprecated"/>
<unitAlias type="metric-ton" replacement="tonne" reason="deprecated"/>
<!--
<unitAlias type="emu-of-inductance" replacement="abhenry" reason="deprecated"/>
-->
<usageAlias type="music-track" replacement="media" reason="deprecated"/>
<usageAlias type="tv-program" replacement="media" reason="deprecated"/>
</alias>
</metadata>
</supplementalData>