Unit Converter
Convert between length, weight, temperature, volume, speed, area, time, and data units instantly.
Frequently Asked Questions
How do you convert units?
Most unit conversions work by multiplying by a conversion factor. For example, to convert 5 kilometers to miles, multiply 5 by 0.621371 to get 3.107 miles. Temperature conversions are an exception — they use offset formulas rather than simple multiplication. This converter handles all conversion types automatically.
What is the metric system?
The metric system (officially called the International System of Units, or SI) is a decimal-based system of measurement used by most countries worldwide. It uses base units like meters for length, kilograms for mass, and seconds for time, with prefixes (kilo-, centi-, milli-, etc.) to express multiples or fractions of those base units.
How do you convert Fahrenheit to Celsius?
To convert Fahrenheit to Celsius, subtract 32 from the Fahrenheit temperature and then multiply by 5/9. The formula is: °C = (°F − 32) × 5 ÷ 9. For example, 98.6°F = (98.6 − 32) × 5/9 = 37°C. To go the other way, multiply Celsius by 9/5 and add 32.