units-of-measurement

A C++14-compatible physical units library with no dependencies and a single-file delivery option. Emphasis on safety, accessibility, performance, and developer experience.

cpp cpp14 units-of-measure bazel dimensional-analysis units header-only compile-time physical-quantities no-dependencies unit-of-measure quantity units-of-measurement physical-units cpp14-library single-header-library header-only-library

UpdatedDec 16, 2025
C++

unitsofmeasurement /unit-api

Star192

Units of Measurement API

java api iot measure units-of-measure standard units measurement jcp jsr quantities units-of-measurement jsr363 jsr385

UpdatedAug 16, 2025
Java

unitsofmeasurement /indriya

Star136

JSR 385 - Reference Implementation

java iot measure units-of-measure units jcp jsr quantities units-of-measurement jsr363 jsr385

UpdatedJul 14, 2025
Java

marcolagi /quantulum

Star118

Python library for information extraction of quantities from unstructured text

python natural-language-processing units-of-measure information-extraction units measurement-units measurements regular-expressions quantities units-of-measurement pint

UpdatedApr 21, 2023
Python

hyperjeff /Physical

Star92

Swift package for physical quantities

constants converter units-of-measure temperature dimensional-analysis units measurement physical-modeling units-of-measurement decibel measurement-computing physical-computing units-converter sigfigs

UpdatedDec 16, 2023
Swift

Digidemic /UnitOf

Star78

A measurement and data type conversion library for Java, JavaScript and C#

javascript java npm converter parser csharp metrics measure npm-package units-of-measure javascript-library units metric measurements units-measures-converter datatype imperial units-of-measurement unitsofmeasurement

UpdatedMay 25, 2024
JavaScript

MadsKirkFoged /EngineeringUnits

Star58

Working with units made easy with automatic unit-check and converting between units

equation calculations measurements quantities units-of-measurement converting-units

UpdatedNov 4, 2025
C#

r-quantities /quantities

Star28

Quantity Calculus for R Vectors

cran r r-package uncertainty-propagation units-of-measurement quantity-calculus

UpdatedDec 15, 2025
R

buge /ts-units

Star25

Physical Units for TypeScript

units-of-measure units units-measures-converter units-of-measurement units-converter

UpdatedJan 22, 2024
TypeScript

unitsofmeasurement /uom-demos

Star22

Units of Measurement Demos

java iot measure units-of-measure units measurement demos units-of-measurement

UpdatedNov 24, 2025
Java

bio-ontology-research-group /unit-ontology

Star21

An ontology of units of measurements

ontology obo units-of-measurement obofoundry

UpdatedAug 9, 2023
Makefile

mjendrusch /metric

Star19

Dimensionful types for Nim.

nim units-of-measure dimensional-analysis si-units units-of-measurement

UpdatedAug 7, 2018
Nim

chakravala /UnitSystems.jl

Sponsor

Star18

Physical unit systems (Metric, English, Natural, Planck, etc...)

constants nist physics units-of-measure unit-conversion dimensional-analysis units unit-converter unit-conversions physical-quantities si-units units-of-measurement unitful electronics-engineering codata unit-system natural-units cgs-units

UpdatedSep 24, 2025
Julia

point85 /CaliperSharp

Star17

Units of measure and conversions between them

c-sharp conversion units-of-measure units measurement-units uom unit-of-measure units-of-measurement

UpdatedJun 13, 2025
C#

dvd101x /Engineering-Solver

Star17

Engineering Solver helps to do calculations with units and thermodynamic properties in a very fast way.

javascript engineering calculator math chemistry plotly plot thermodynamics codemirror-editor units-measures-converter humidity dew-point javascipt units-of-measurement coolprop mathjs codemirror-mode psychrometrics periodic-table-of-elements enthalpy

UpdatedOct 29, 2025
JavaScript

point85 /caliper

Star16

Caliper is a project for managing units of measure and the conversions between them.

java units-of-measure units measurement-units uom unit-of-measure units-of-measurement measure-conversion jsr-363

UpdatedJun 10, 2025
Java

esapulkkinen /cifl-math-library

Star15

Basic mathematics library

haskell graph graph-algorithms matrix mathematics haskell-library streams category-theory generating-function cabal-package monoids vector-math units-of-measurement real-number

UpdatedJun 7, 2025
Haskell

CallumJHays /mathpad

Star15

Type-hinted, simplified interface to `sympy` for solving engineering, science and maths problems.

python latex ipython-notebook dynamical-systems maths sympy units-of-measurement compute-algebraic-systems

UpdatedDec 18, 2023
Python

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