Quick reference
Unit Conversion Cheat Sheet
Use this cheat sheet when you need the most common conversion relationships before opening a calculator or full conversion chart.
Length and distance
1 inch = 2.54 centimeters. 1 foot = 0.3048 meters. 1 yard = 0.9144 meters. 1 mile = 1.609344 kilometers.
Weight and mass
1 pound = 0.45359237 kilograms. 1 ounce = 28.349523125 grams. 1 stone = 14 pounds. 1 metric ton = 1000 kilograms.
Volume and cooking
1 US gallon = 3.785411784 liters. 1 liter = 1000 milliliters. 1 US cup = 236.5882365 milliliters.
Speed, pressure, and power
1 mph = 1.609344 kph. 1 psi = 6.894757293 kPa. 1 horsepower = 745.699872 watts.
Digital storage
Decimal storage uses powers of 1000, so 1 GB = 1000 MB. Binary storage uses powers of 1024, so 1 GiB = 1024 MiB.