agnoster/unitology

Easy conversions between units
JavaScript
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Unitology

Sometimes you just want to convert from one unit to another.

``````unit = require('unitology')
unit.time('5m').to('s') // -> 300
unit.length('5m').to('inches') // -> 196.85
unit.weight('5kg').to('pounds') -> 11.0231
``````

Well, you get the idea. But what about custom conversions?

``````unit.time.fortnight = '2 weeks'
unit.time('1 year').to('fortnight') // -> 26.0887285
unit.time('2 fortnights').to('days') // -> 28
``````

Okay, so you can add a new unit to an existing type of measurement. What about totally new measures?

``````unit.volume = unit.define('l')
unit.volume.liter = 'l'
unit.volume.litre = 'l'
unit.volume.cc = '0.001l'
unit.volume.define({ 'cubic meters': '1000l', 'm3': 'cubic meters' })
``````

Though it might be nicer, and more concise, to write this way:

``````unit.volume = unit.define(
'l, liter, litre',
{
cc: '0.001l',
'cubic meters, m3': '1000l'
}
)
``````

TBD

How to convert units like temperature? More complex formula needed.

Maybe:

``````unit.temp['K->C'] = function(k) { return k + 273 }
unit.temp['C->K'] = function(c) { return c - 273 }
``````

Or something?

Contributing

I love forks, pull requests, and issues. Use Github, it's the bee's knees!

MIT License

Copyright (C) 2012 by Isaac Wolkerstorfer

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.