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FREE ONLINE UNIT CONVERTER
Convert length, weight, temperature, volume, speed and more instantly. Free unit converter with 50+ conversions. No signup needed.
Length
Weight
Temperature
Volume
Speed
Area
Most Common Unit Conversions
- Length: metres to feet, kilometres to miles, centimetres to inches
- Weight: kilograms to pounds, grams to ounces, tonnes to tons
- Temperature: Celsius to Fahrenheit, Celsius to Kelvin
- Volume: litres to gallons, millilitres to fluid ounces, cubic metres to cubic feet
- Speed: km/h to mph, m/s to km/h
- Area: square metres to square feet, hectares to acres
Frequently Asked Questions
What units can I convert?+
Length, weight, temperature, volume, speed, area and time — over 50 unit conversions.
Is it accurate?+
Yes, all conversions use precise mathematical formulas.
Can I convert temperature?+
Yes. Celsius, Fahrenheit and Kelvin are all supported.
Is it free?+
Yes, 100% free with no signup required.
Does it work on mobile?+
Yes, fully responsive on all devices.