Unit Converter

Convert length, weight, temperature, volume and more.

Free · Runs in your browser · Last updated 2026-05-03

About this tool

Convert between metric and imperial units across length, mass, temperature, volume, area and time.

Privacy

All processing for Unit Converter happens locally inside your browser using JavaScript. Your input is never uploaded to a server, logged, or shared with third parties.

Frequently asked questions

Is the Unit Converter free to use?

Yes. Unit Converter is completely free for both personal and commercial projects. There are no usage limits, no sign-up, and no premium tier.

Is my data safe when I use Unit Converter?

All processing happens locally in your browser using JavaScript. Your input is never uploaded to our servers, logged, or shared with any third party.

Does Unit Converter work offline?

Once the page has loaded, the tool runs entirely client-side. You can disconnect from the internet and it will keep working in the same browser tab.

Which browsers are supported?

Unit Converter works in all modern browsers, including the latest versions of Chrome, Firefox, Safari, Edge, Brave, and Opera, on desktop and mobile.

Do I need to install anything?

No. Unit Converter runs in any modern web browser with no installation, browser extension, or account required.

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