These formulas provide the mathematical basis for converting between different units of measurement. Use the tabs below to navigate between different measurement categories.
inches = millimeters × 0.03937
inches = centimeters × 0.3937
feet = meters × 3.28084
miles = kilometers × 0.62137
millimeters = inches × 25.4
centimeters = inches × 2.54
meters = feet × 0.3048
kilometers = miles × 1.60934
To convert a value from one unit to another, simply substitute the value into the appropriate formula.
To convert 20°C to Fahrenheit: °F = (20 × 9/5) + 32 = 68°F