Length
Supports scientific notation (e.g. 1.5e8)
Common conversions
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About this converter
GS-Trung Unit Converter is a free, privacy-respecting online tool for converting between units across 26 measurement categories, from everyday length, mass, temperature and volume to engineering values like pressure, torque, viscosity and advanced astronomical units such as the astronomical unit (AU), light year, parsec, solar mass and solar luminosity. Every conversion runs entirely in your browser — your values are never uploaded to any server.
Frequently asked questions
Is this tool really free?
Yes. No sign-up, no paywall, no annoying popups.
Which astronomical units are supported?
Astronomical Unit (AU), light second/minute/hour/day/year, parsec through gigaparsec, solar mass, Jupiter mass, Earth mass, lunar mass, solar radius, solar luminosity, sidereal day, sidereal year, tropical year and Julian year.
Are the factors accurate?
Conversion factors use SI-exact definitions or the latest CODATA values. Where a unit has multiple historical definitions (e.g. the US vs UK ton), both variants are provided and labelled.
Does it work offline?
After the first load, the page works offline for as long as the browser cache persists. No internet connection is required to perform conversions.
