Is this converter free to use?

Yes. The unit converter is 100% free with no sign-up required. All conversions happen instantly in your browser.

How accurate are the conversions?

All conversions use mathematically precise conversion factors. Results are accurate to the precision of standard floating-point arithmetic.

Can I swap between from and to units?

Yes. Use the swap button to instantly reverse the conversion direction. The converted value becomes the input and the original value becomes the result.

Does it work on mobile?

Yes. The unit converter is fully responsive and works on all devices including smartphones and tablets.

Free Tool — 400+ Units

Unit Converter

Convert between 400+ units across 9 categories — length, weight, temperature, speed, digital storage, area, volume, time, and energy. Instant results, swap units, history tracking.

Conversion

How to Convert Units

Step 1

Select Category & Units

Choose a category (Length, Weight, Temperature, Speed, etc.) and select your 'From' and 'To' units.

Step 2

Enter Input Value

Type your value into the input field. Results update live as you type, with zero button clicks needed.

Step 3

Copy or Save Results

Copy the calculated result to your clipboard or save it to your local conversion history.

Frequently Asked Questions

How many units are supported?

Over 400 units across 9 categories: length, weight, temperature, speed, digital storage, area, volume, time, and energy.

Is conversion accurate?

Yes, uses precise mathematical conversion factors for accurate results.

Can I swap units?

Yes, one-click unit swap to quickly reverse the conversion direction.

Does it work offline?

Yes, all conversions happen in your browser. No internet connection required.

Can I copy results?

Yes, click any result to copy it to your clipboard.