Unit Converter
Convert length, weight and temperature units instantly and accurately.
Your privacy is safe, this tool runs entirely in your browser. Nothing you enter is uploaded to or stored on our servers.
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How to use Unit Converter
- 1Pick a category: length, weight or temperature.
- 2Choose the unit to convert from and the unit to convert to.
- 3Type a value, the result appears instantly.
- 4Use the swap button to flip the two units.
About the Unit Converter
This free unit converter handles the everyday conversions you need most: length, weight and temperature. Switch category, pick your units and get an instant, accurate result.
It is great for cooking, travel, DIY, study and quick checks. All conversions run locally in your browser.
Frequently asked questions
What units can I convert?
Length (m, km, cm, mm, mi, yd, ft, in), weight (kg, g, mg, lb, oz) and temperature (Celsius, Fahrenheit, Kelvin). Pick a category, choose the units, and type a value for an instant result.
How do I convert cm to inches?
Choose Length, set “from” to cm and “to” in, then type your value. As a rule of thumb, 1 inch = 2.54 cm, so 10 cm is about 3.94 inches.
How do I convert kg to lbs?
Choose Weight, set “from” to kg and “to” lb. One kilogram is about 2.205 pounds, so 5 kg is roughly 11.02 lbs.
How do I convert Celsius to Fahrenheit?
Choose Temperature, set “from” to Celsius and “to” Fahrenheit. The formula is °F = (°C × 9/5) + 32, so 25°C equals 77°F.
How accurate is the unit converter?
It uses standard conversion factors, so results are accurate for everyday and most technical needs.
Is it free and private?
Yes. It is free and runs entirely in your browser, with nothing uploaded.