A library to easily convert between units of different system.

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In the dependencies: section of your pubspec.yaml, add the following line:

unit_converter: <latest_version>


If you want to convert area units, get an instance of area converter, and call the convert method:

import 'package:unit_converter/unit_converter.dart';

main() {
  var areaConverter = getConverter(Converter.area);
  areaConverter.convert(value: 2, from: AreaUnit.acre, to: AreaUnit.squareFoot);

Get the available units:

  var avilableUnits = areaConverter.units();

Each unit have a name(British spelling) and an americanName(American spelling) property. For units that have the same americanName as name, the americanName is null. So, it is always good to check for the availability of americanName before displaying it.

  for(var unit in avilableUnits) {
    if(unit.americanName != null) {
    } else {


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Features and bugs

Please file feature requests and bugs at the issue tracker.

How to Contribute

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request


Unit converter library.