Unit Converter
Convert between metric and imperial units instantly. Type in either box and the other updates, with every related unit listed below.
All conversions
Common conversions
1 inch = 2.54 cm · 1 foot = 30.48 cm · 1 mile = 1.609 km · 1 kg = 2.205 lb · 1 stone = 6.35 kg · 1 US gallon = 3.785 L · °F = °C × 9 ÷ 5 + 32 · 1 GB = 1,000 MB · 1 GiB = 1,024 MiB.
Frequently asked questions
How accurate are the conversions?
Conversions use the exact international definitions, for example 1 inch = 2.54 cm and 1 pound = 0.45359237 kg. Results are rounded for display only.
What is the difference between MB and MiB?
A megabyte (MB) is 1,000,000 bytes, while a mebibyte (MiB) is 1,048,576 bytes (2²⁰). Drive makers use MB and GB; many operating systems report MiB and GiB.
Are US and UK gallons the same?
No. A US gallon is 3.785 liters and a UK (imperial) gallon is 4.546 liters. Cups, pints and fluid ounces here use US measures.