Unit Converter
Free unit converter. Convert between miles and kilometers, pounds and kilograms, gallons and liters, Fahrenheit and Celsius, and hundreds of other units across length, weight, volume, temperature, speed, and more.
How to Convert Units of Measurement
Unit conversion means expressing the same physical quantity in a different unit. Conversion factors relate units to each other. This converter covers the most common categories: length, weight, volume, and temperature, with special emphasis on US customary units like miles, feet, inches, Fahrenheit, gallons, pounds, and ounces.
Conversion Categories
Length: miles, yards, feet, inches, kilometers, meters, centimeters, and millimeters. Weight: pounds, ounces, kilograms, grams, and milligrams. Volume: gallons, quarts, pints, cups, liters, and milliliters. Temperature: Fahrenheit, Celsius, and Kelvin.
Frequently Asked Questions
How many centimeters are in an inch?
One inch equals exactly 2.54 centimeters.
How do I convert Fahrenheit to Celsius?
Use the formula: °C = (°F - 32) × 5/9. For example, 98.6°F = (98.6 - 32) × 5/9 = 37°C.