Question 1

How do I convert units online?

Accepted Answer

Select the category (length, weight, or temperature), choose the units you want to convert from and to, enter a value, and the result appears instantly.

Question 2

What units are supported?

Accepted Answer

Length: mm, cm, m, km, inches, feet, yards, miles. Weight: mg, g, kg, tons, ounces, pounds, stones. Temperature: Celsius, Fahrenheit, Kelvin.

Question 3

Is this unit converter free?

Accepted Answer

Yes, completely free with no limits. All conversions happen in your browser — no data is sent to any server.

Question 4

How accurate are the conversions?

Accepted Answer

All conversions use standard mathematical formulas and are accurate to multiple decimal places. Results are computed in real-time in your browser.