units.yaml

# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the License);
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an AS IS BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
acceleration:
  meters_per_square_second: STANDARD
  gravity:
    multiplier: 9.80665
    offset: 0
  milligravity:
    multiplier: 0.00980665
    offset: 0
  feet_per_square_second:
    multiplier: 0.3048
    offset: 0
  millimeters_per_square_second:
    multiplier: 0.001
    offset: 0
angle:
  degrees: STANDARD
angularmomentum:
  joule_seconds: STANDARD
# TODO(tsodorff): Define a way of properly doing this conversion.
aqi:
  epa: STANDARD #Environmental Protection Agency standard
  eea: # European Air Quality Index
    multiplier: 1
    offset: 0
  uba: # Umwelt Bundesamt, German air quality standard
    multiplier: 1
    offset: 0
  awair: # Awair Air Quality Score
    multiplier: 1
    offset: 0
area:
  square_meters: STANDARD
  square_centimeters:
    multiplier: 0.0001
    offset: 0
  square_feet:
    multiplier: 0.09290304
    offset: 0
  square_inches:
    multiplier: 0.00064516
    offset: 0
concentration:
  parts_per_unit: STANDARD
  parts_per_million:
    multiplier: 0.000001
    offset: 0
  parts_per_billion:
    multiplier: 0.000000001
    offset: 0
  grams_per_kilogram: # Can convert approximately using Avogadro
    multiplier: 0.001
    offset: 0
  grams_of_water_per_kilogram:
    multiplier: 0.001
    offset: 0
current:
  amperes: STANDARD
  milliamperes:
    multiplier: 0.001
    offset: 0
currentratio:
  no_units: STANDARD
diameter: distance
density:
  kilograms_per_cubic_meter: STANDARD
  grams_per_cubic_meter:
    multiplier: 0.001
    offset: 0
  micrograms_per_cubic_meter:
    multiplier: 0.000000001
    offset: 0
  milligrams_per_cubic_meter:
    multiplier: 0.000001
    offset: 0
distance:
  meters: STANDARD
  centimeters:
    multiplier: 0.01
    offset: 0
  millimeters:
    multiplier: 0.001
    offset: 0
  micrometers:
    multiplier: 0.000001
    offset: 0
  feet:
    multiplier: 0.3048
    offset: 0
  inches:
    multiplier: 0.0254
    offset: 0
electriccapacitance:
  farads: STANDARD
electricconductance:
  siemens: STANDARD
electricconductivity:
  siemens_per_meter: STANDARD
  microsiemens_per_centimeter:
    multiplier: 0.0001
    offset: 0
electriccurrentdensity:
  amperes_per_square_meter: STANDARD
electricfield:
  volts_per_meter: STANDARD
electricinductance:
  henrys: STANDARD
electricphasedifference:
  degrees_phase: STANDARD
electricfieldstrength:
  amperes_per_meter: STANDARD
electricresistivity:
  ohm_meters: STANDARD
energy:
  joules: STANDARD
  kilowatt_hours:
    multiplier: 3600000
    offset: 0
  btus:
    multiplier: 1055.055853
    offset: 0
  kilobtus:
    multiplier: 1055055.853
    offset: 0
  kilojoules:
    multiplier: 1000
    offset: 0
  megabtus:
    multiplier: 1055055853
    offset: 0
  megajoules:
    multiplier: 1000000
    offset: 0
  megawatt_hours:
    multiplier: 3600000000
    offset: 0
  therms:
    multiplier: 105480400
    offset: 0
  kilovolt_ampere_hours:
    multiplier: 3600000
    offset: 0
  kilovolt_ampere_apparent_hours:
    multiplier: 3600000
    offset: 0
  kilovolt_ampere_reactive_hours:
    multiplier: 3600000
    offset: 0
  ton_hours:
    multiplier: 12660670.23144
    offset: 0
  watt_hours:
    multiplier: 3600
    offset: 0
energydensity:
  kilojoules_per_kilogram: STANDARD
entropy:
  joules_per_kelvin: STANDARD
  kilojoules_per_kelvin:
    multiplier: 1000
    offset: 0
  megajoules_per_kelvin:
    multiplier: 1000000
    offset: 0
flowrate:
  cubic_meters_per_second: STANDARD
  cubic_feet_per_second:
    multiplier: 0.028316846592
    offset: 0
  cubic_feet_per_minute:
    multiplier: 0.0004719474432000001
    offset: 0
  cubic_feet_per_hour:
    multiplier: 0.000007865792
    offset: 0
  cubic_meters_per_minute:
    multiplier: 0.016666666666666667
    offset: 0
  cubic_meters_per_hour:
    multiplier: 0.000277777777777778
    offset: 0
  liters_per_second:
    multiplier: 0.001
    offset: 0
  liters_per_minute:
    multiplier: 0.000016666666666667
    offset: 0
  liters_per_hour:
    multiplier: 0.000000277777777778
    offset: 0
  gallons_per_minute:
    multiplier: 0.0000630901964
    offset: 0
  imperial_gallons_per_minute:
    multiplier: 0.000075768166666667
    offset: 0
  us_gallons_per_minute:
    multiplier: 0.0000630901964
    offset: 0
force:
  newton: STANDARD
frequency:
  hertz: STANDARD
  cycles_per_hour:
    multiplier: 3600
    offset: 0
  cycles_per_minute:
    multiplier: 60
    offset: 0
  kilohertz:
    multiplier: 0.001
    offset: 0
  megahertz:
    multiplier: 0.000001
    offset: 0
  per_hour:
    multiplier: 3600
    offset: 0
  per_minute:
    multiplier: 60
    offset: 0
  per_second:
    multiplier: 1
    offset: 0
humidity:
  percent_relative_humidity: STANDARD
illuminance:
  lux: STANDARD
  foot_candles:
    multiplier: 10.7639
    offset: 0
length: distance
level: distance
impulse:
  newton_seconds: STANDARD
irradiance:
  watts_per_square_meter_irradiance: STANDARD
  kilowatts_per_square_meter_irradiance:
    multiplier: 1000
    offset: 0
linearacceleration: acceleration
linearvelocity:
  meters_per_second: STANDARD
  meters_per_minute:
    multiplier: 0.016666666667
    offset: 0
  meters_per_hour:
    multiplier: 0.000277777778
    offset: 0
  millimeters_per_minute:
    multiplier: 0.000016666667
    offset: 0
  millimeters_per_second:
    multiplier: 0.001
    offset: 0
  kilometers_per_hour:
    multiplier: 0.277777777778
    offset: 0
  feet_per_minute:
    multiplier: 0.00508
    offset: 0
  feet_per_second:
    multiplier: 0.3048
    offset: 0
  miles_per_hour:
    multiplier: 0.44704
    offset: 0
luminance:
  candelas_per_square_meter: STANDARD
luminousflux:
  lumens: STANDARD
luminousintensity:
  candelas: STANDARD
magneticflux:
  webers: STANDARD
magneticinduction:
  teslas: STANDARD
magneticmoment:
  ampere_square_meters: STANDARD
mass:
  grams: STANDARD
  kilograms:
    multiplier: 1000
    offset: 0
  pounds_mass:
    multiplier: 453.592
    offset: 0
  tons:
    multiplier: 907184
    offset: 0
massconcentration: concentration
massflow:
  grams_per_second: STANDARD
  grams_per_minute:
    multiplier: 0.016666666667
    offset: 0
  kilograms_per_hour:
    multiplier: 0.27778
    offset: 0
  kilograms_per_minute:
    multiplier: 16.6667
    offset: 0
  kilograms_per_second:
    multiplier: 1000
    offset: 0
  tons_per_hour:
    multiplier: 251.996
    offset: 0
  pounds_mass_per_hour:
    multiplier: 0.125998
    offset: 0
  pounds_mass_per_minute:
    multiplier: 7.55987
    offset: 0
  pounds_mass_per_second:
    multiplier: 453.592
    offset: 0
obscuration:
  percent_obscuration_per_meter: STANDARD
  percent_obscuration_per_foot:
    multiplier: 0.3048
    offset: 0
percentage:
  percent: STANDARD
power:
  watts: STANDARD
  kilowatts:
    multiplier: 1000
    offset: 0
  volt_amperes:
    multiplier: 1
    offset: 0
  kilovolt_amperes:
    multiplier: 1000
    offset: 0
  megawatts:
    multiplier: 1000000
    offset: 0
  milliwatts:
    multiplier: 0.001
    offset: 0
  tons_of_refrigeration:
    multiplier: 3517
    offset: 0
  btus_per_hour:
    multiplier: 0.29307107
    offset: 0
  horsepower:
    multiplier: 745.699872
    offset: 0
  kilobtus_per_hour:
    multiplier: 293.07107
    offset: 0
  therms_per_hour:
    multiplier: 29300.1111
    offset: 0
  volt_amperes_reactive:
    multiplier: 1
    offset: 0
  kilovolt_amperes_reactive:
    multiplier: 1000
    offset: 0
  megavolt_amperes_reactive:
    multiplier: 1000000
    offset: 0
  volt_amperes_apparent:
    multiplier: 1
    offset: 0
  kilovolt_amperes_apparent:
    multiplier: 1000
    offset: 0
  megavolt_amperes_apparent:
    multiplier: 1000000
    offset: 0
powerfactor:
  no_units: STANDARD
powerflux:
  watts_per_square_meter: STANDARD
  watts_per_square_foot:
    multiplier: 0.092903
    offset: 0
pressure:
  pascals: STANDARD
  hectopascals:
    multiplier: 0.01
    offset: 0
  kilopascals:
    multiplier: 1000
    offset: 0
  centimeters_of_mercury:
    multiplier: 1333.22365
    offset: 0
  centimeters_of_water:
    multiplier: 98.0665
    offset: 0
  millimeters_of_mercury:
    multiplier: 133.322
    offset: 0
  inches_of_water:
    multiplier: 249.080024
    offset: 0
  inches_of_mercury:
    multiplier: 3386.39
    offset: 0
  pounds_force_per_square_inch:
    multiplier: 6894.75789
    offset: 0
  atmospheres:
    multiplier: 101325
    offset: 0
  millibar:
    multiplier: 100
    offset: 0
  bars:
    multiplier: 100000
    offset: 0
rate:
  inv_second: STANDARD
resistance:
  ohms: STANDARD
  kiloohms:
    multiplier: 1000
    offset: 0
  megaohms:
    multiplier: 1000000
    offset: 0
  milliohms:
    multiplier: 0.001
    offset: 0
rotationalvelocity:
  revolutions_per_minute: STANDARD
soundpressurelevel:
  decibels: STANDARD
specificenergy:
  joules_per_kilogram_kelvin: STANDARD
specificenthalpy:
  joules_per_kilogram: STANDARD
  btus_per_pound_dry_air:
    multiplier: 2326
    offset: 0
  joules_per_kilogram_dry_air:
    multiplier: 1
    offset: 0
  kilojoules_per_kilogram_dry_air:
    multiplier: 1000
    offset: 0
  megajoules_per_kilogram_dry_air:
    multiplier: 1000000
    offset: 0
temperature:
  kelvin: STANDARD
  degrees_celsius:
    multiplier: 1
    offset: 273.15
  degrees_fahrenheit:
    multiplier: 0.5555555555555556
    offset: 255.37037037037038
timetemperature:
  degree_days_kelvin: STANDARD
  degree_days_celsius:
    multiplier: 1
    offset: -273.15
  degree_days_fahrenheit:
    multiplier: 0.5555555556
    offset: 255.37
thermalconductivity:
  watts_per_meter_per_kelvin: STANDARD
thermalcapacity:
  btus_per_pound: STANDARD
thermaltransmittance:
  watts_per_square_meter_kelvin: STANDARD
time:
  seconds: STANDARD
  days:
    multiplier: 84600
    offset: 0
  hours:
    multiplier: 3600
    offset: 0
  hundredths_seconds:
    multiplier: 0.01
    offset: 0
  milliseconds:
    multiplier: 0.001
    offset: 0
  minutes:
    multiplier: 60
    offset: 0
  weeks:
    multiplier: 604800
    offset: 0
torque:
  newton_meters: STANDARD
voltage:
  volts: STANDARD
  kilovolts:
    multiplier: 1000
    offset: 0
  megavolts:
    multiplier: 1000000
    offset: 0
  millivolts:
    multiplier: 0.001
    offset: 0
voltageratio:
  no_units: STANDARD
volume:
  cubic_meters: STANDARD
  liters:
    multiplier: 0.001
    offset: 0
  imperial_gallons:
    multiplier: 0.00454609
    offset: 0
  us_gallons:
    multiplier: 0.003785412
    offset: 0
  cubic_feet:
    multiplier: 0.028316846592
    offset: 0
volumetricconcentration:
  parts_per_cubic_centimeter: STANDARD # can be approximated using Avogadro
xvalue:
  no_units: STANDARD
yvalue:
  no_units: STANDARD