About Unit Converter
Unit Converter is a free, private tool by Digital Heroes that converts across 8 categories: length, weight, temperature, area, volume, speed, digital storage, and time. Every conversion runs entirely in your browser, nothing is uploaded, no sign-up is needed, and it works offline. Results update live as you type in either field, so you can also reverse-convert by entering the output value. All factors use exact defined values (for example, 1 inch = 25.4 mm exactly), and temperature conversions use the correct offset formulas, not naive multiplication.
Frequently asked questions
Is Unit Converter free?
Yes, Unit Converter is completely free for everyone. No sign-up, no account and no usage limits.
Is it private? Are my files uploaded anywhere?
No. Unit Converter runs entirely in your browser on your own device, so your data never leaves your computer and nothing is uploaded to a server.
Does it work offline?
Yes. This tool is a Progressive Web App, once the page has loaded it keeps working offline, and you can install it as an app from your browser.
Do I need to install anything or create an account?
No. Just open the page and start using it. Installing it as an app is optional and only adds offline convenience.
What does Unit Converter do?
It converts values across 8 unit categories: length, weight, temperature, area, volume, speed, digital storage, and time. Pick a category, enter a value and choose your units, and the result updates instantly. You can also type in the output field to reverse-convert. All calculations run locally in your browser with no data sent anywhere.