Convert between common units of length, area, volume, weight, and temperature.
Every unit within a category is defined relative to a common base unit (meters for length, liters for volume, kilograms for weight, and so on). Converting from one unit to another is a two-step process: convert the input into the base unit, then convert the base unit into the target unit. Temperature is the exception, since Celsius, Fahrenheit, and Kelvin scales don't share a zero point.
Conversion factors used here (like 1 mile = 1,609.344 meters, or 1 pound = 0.45359237 kilograms) are the internationally defined exact values, not rounded approximations.
Each category has its own set of compatible units — length and weight, for example, can't be converted into each other, so the "From" and "To" lists update to match the category you pick.
Yes — that's one of the most common uses of this calculator. Pick any "From" unit and any "To" unit within the same category, metric or imperial.
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