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Unit Converter
Convert instantly between length, weight, temperature, volume, area and speed units: cm-inch, kg-lb, °C-°F, km/h-mph and more. Enter a value and see its equivalent in every unit in one table. Free, no sign-up.
In all units
Unit Conversion: A Bridge Between Two Systems
The world uses two major measurement systems: the metric system (metre, kilogram, litre, Celsius) adopted by nearly every country, and the imperial system (inch, pound, gallon, Fahrenheit) still used chiefly in the United States. From shopping to recipes, parcel sizes to sports stats, the two systems constantly cross paths; a screen size comes in inches, a flight distance in miles, a body weight in pounds. This tool converts all common units across six core categories (length, weight, temperature, volume, area, speed) and also shows your value's equivalent in every unit of the category in a single table.
A few bridge values worth remembering: 1 inch = 2.54 cm; 1 mile = 1.609 km; 1 kg ≈ 2.2 lb; 1 US gallon ≈ 3.785 litres; and for temperature °F = °C × 1.8 + 32. All conversions run in your browser using international standard factors; no data is sent anywhere.
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