The smallest & fastest library for really easy, totally type-safe unit conversions in TypeScript & JavaScript.
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Updated
Jun 25, 2026 - TypeScript
The smallest & fastest library for really easy, totally type-safe unit conversions in TypeScript & JavaScript.
A run-time C++ library for working with units of measurement and conversions between them and with string representations of units and measurements
Physical quantities
Physical unit systems (Metric, English, Natural, Planck, etc...)
Free WordPress Plugin: Need a fast and accurate unit converter? Use our free online tool to easily convert length, weight, temperature, area, volume, and time measurements. www.calculator.io/unit-converter/
.NET Insanely Fast Unit Converter
Physical Quantities (PhQ) is a C++ library of physical quantities, physical models, and units of measure for scientific computing.
Dimensions and Quantities for UnitSystems.jl
A simple yet effective temperature converter for hassle-free basic temperature conversions.
Simple application to convert points, pixels, percentage and rem interchangeably with a simple and clean interface.
A web-app for converting physical units
A wrapper script for interacting with the Frink language, downloads frink jar and configures tab completion/history support
💾 A simple, no-fuss storage unit converter written in Vue 3
Measurements.jl layer for UnitSystems.jl
expandable unit system, providing unit conversion on small and large scale
A type-safe Dart library for unit conversion
A comprehensive .NET library for creating type-safe, validated string and physics quantity types using semantic meaning.
Simple Physical Quantities for Python - Unit conversions made easy
Commandline converter utility that supports a wide range of conversions
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