Unit Converter
Enter your values below and click Calculate for instant results.
Convert between length, weight, temperature, volume, area, speed, and digital storage units. All major metric and imperial units included.
Enter your values below and click Calculate for instant results.
This converter handles seven categories: length, weight and mass, temperature, volume, area, speed, and digital storage. All conversions use standard internationally accepted values.
Temperature is the only category that requires a formula rather than a simple multiplication factor. Celsius to Fahrenheit: multiply by 9/5 then add 32. Fahrenheit to Celsius: subtract 32 then multiply by 5/9. Celsius to Kelvin: add 273.15. Kelvin to Celsius: subtract 273.15.
A few conversions worth memorizing: 1 mile equals approximately 1.609 kilometers. 1 kilogram equals approximately 2.205 pounds. 1 inch equals exactly 2.54 centimeters. 1 liter equals approximately 0.264 US gallons. 1 acre equals approximately 0.405 hectares. 0 degrees Celsius equals 32 degrees Fahrenheit (freezing point of water), and 100 degrees Celsius equals 212 degrees Fahrenheit (boiling point).
The United States is one of only three countries in the world that has not officially adopted the metric system as its primary measurement system. Most scientific, medical, and international trade contexts use metric. Being comfortable converting between systems is a practical skill for travel, cooking international recipes, understanding product specifications, and following scientific or medical information.