Unit Converter
Result
How to Use This Unit Converter
Select a category (Length, Weight, Temperature, or Volume) using the tabs above the converter. Enter the value you want to convert, choose your source unit in the "From" dropdown and target unit in the "To" dropdown, then click "Convert." You can also press Enter to convert instantly.
Use the swap button between the dropdowns to quickly reverse the conversion direction. All conversions happen entirely in your browser, so your data never leaves your device.
Common Conversion Formulas
Length: Multiply by the appropriate factor. For example, 1 mile = 1.60934 kilometers, 1 foot = 0.3048 meters, and 1 inch = 2.54 centimeters.
Weight: 1 pound = 0.453592 kilograms, 1 ounce = 28.3495 grams. Divide pounds by 2.20462 to get kilograms.
Temperature: Fahrenheit to Celsius: subtract 32, then multiply by 5/9. Celsius to Fahrenheit: multiply by 9/5, then add 32. Celsius to Kelvin: add 273.15.
Volume: 1 US gallon = 3.78541 liters = 16 cups. 1 cup = 8 fluid ounces = 236.588 milliliters.
Frequently Asked Questions
How do I convert between Fahrenheit and Celsius?
To convert Fahrenheit to Celsius, subtract 32 and multiply by 5/9. For example, 72 degrees F = (72 - 32) x 5/9 = 22.22 degrees C. To go the other way, multiply Celsius by 9/5 and add 32.
How many kilometers are in a mile?
One mile equals approximately 1.60934 kilometers. To convert miles to kilometers, multiply the number of miles by 1.60934.
How many liters are in a gallon?
One US gallon equals approximately 3.78541 liters. To convert gallons to liters, multiply the number of gallons by 3.78541.
How do I convert pounds to kilograms?
To convert pounds to kilograms, divide by 2.20462 (or multiply by 0.453592). For example, 150 pounds = 150 x 0.453592 = 68.04 kilograms.