Units.NET
Makes life working with units of measurement just a little bit better
Add strongly typed quantities to your code and get merrily on with your life. No more magic constants found on Stack Overflow, no more second-guessing the unit of parameters and variables. Get all the common units of measurement and the conversions between them. It is lightweight and thoroughly tested. 100+ quantities with 1200+ units generated from JSON by C# CLI app. 8000+ unit tests on conversions and localizations.