> For the complete documentation index, see [llms.txt](https://flutter-docs.taxi.ridy.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://flutter-docs.taxi.ridy.io/configuration/measurement-system.md). # Measurement System Most countries use the metric system for measurements (e.g., kilometers, Celsius), while others, like the USA, use the imperial system (e.g., miles, feet, Fahrenheit). Ridy supports both systems in its client-side apps. To change the default system from metric to imperial, navigate to `->lib->config->env.dart` and update the `defaultMetricSystem` value.

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  static const List<double> walletPresets = [10, 20, 50];
  static const MapProviderEnum defaultMapProvider = MapProviderEnum.mapBox;
  static const MeasurementSystem defaultMeasurementSystem = MeasurementSystem.imperial;
}