About this unit converter
This unit converter covers the conversions people search for most: cm to inches, kg to lb, Celsius to Fahrenheit, mph to km/h, GB to MB, and more. Factors use international standards (for example, 1 inch = 2.54 cm exactly).
How to use
- Pick a category (length, weight, temperature, etc.).
- Enter a value and choose From / To units.
- Read the converted result instantly.
Formula
Most conversions multiply by a factor to a base SI unit, then divide by the target factor. Temperature uses the standard C ↔ F ↔ K equations.
°F = (°C × 9/5) + 32 · °C = (°F − 32) × 5/9
Worked examples
Popular: 1 mile = 1.609344 km · 1 kg ≈ 2.20462 lb · 0°C = 32°F · 100°C = 212°F.
Tips
- Storage devices often advertise decimal GB (1,000³) while OSes show binary GiB (1,024³).
- Cooking volume cups differ slightly by country; values here use US customary measures.
Frequently asked questions
How many cm in an inch?
Exactly 2.54 centimeters. So 10 inches = 25.4 cm.
How do I convert kg to lbs?
Multiply kilograms by 2.2046226. Or use the Weight category in this converter.