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Free unit converter for length, weight, volume, area, speed, temperature, data size and time. Convert metric and imperial units accurately and instantly.
Enter your values and select Calculate to see the result.
Recipes, travel, shopping and engineering all mix metric and imperial units. A converter that knows the exact factors saves you from rounding errors and wrong guesses.
Enter a value, pick the unit you are converting from and the unit you want. The tool covers length, weight, volume, area, speed, temperature, data size and time. Both units must be in the same category; temperature uses its own formulas rather than a simple multiplier.
value × (source unit ÷ target unit); temperature uses its own formulas
10 kilometers equals about 6.2137 miles. Both units must be in the same category.
Length, weight, volume, area, speed, temperature, data size and time, each with the most common metric and imperial units.
Units must measure the same thing. Choose both units from the same category, for example length to length.
A megabyte (MB) is 1,000,000 bytes, while a mebibyte (MiB) is 1,048,576 bytes. Operating systems often show MiB but label it MB.
Yes. A US gallon is about 3.785 litres and a UK gallon about 4.546 litres. Both are listed separately.