Convert length, weight, temperature, volume, area, speed and data units instantly.
All conversions happen offline in your browser.
Understanding your result
Conversions are exact where the relationship is defined exactly (such as 1 inch = 2.54 cm) and rounded sensibly for display. Switching the from and to units reverses the conversion.
Formula and method
Most units convert through a common base unit: the value is multiplied by its factor to the base, then divided by the target factor. Temperature uses dedicated formulas, for example °F = °C × 9/5 + 32.
Worked example
1 kilogram = 2.2046 pounds. 100 km/h = 62.137 mph. 25 °C = 77 °F.
How to use this tool
- Pick the measurement type, such as length or weight.
- Enter your value and choose the from and to units.
- The converted result appears instantly as you type.
Common mistakes to avoid
- Converting between different measurement types, such as length to weight.
- Confusing metric tonnes with imperial tons.
About the Unit Converter
The Unit Converter turns any measurement into another unit within the same category — convert kilograms to pounds, centimetres to inches, Celsius to Fahrenheit and many more, all instantly.
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Frequently asked questions
How many units are supported?
Seven categories cover dozens of everyday units across length, weight, temperature, volume, area, speed and digital storage.
Are the conversions accurate?
Yes. Standard internationally defined factors are used, with results rounded for readability.