Enter a value, select the source and target units, and convert. Results also update while you type. Swap units keeps the entered value. Common examples fill the calculator for you. Copy copies the numeric result only.
Good to know
Uses the international foot (0.3048 m) and international mile (1,609.344 m), not the retired US survey foot. One inch is exactly 2.54 cm. Enter one decimal measurement; combined feet-and-inches notation is not parsed.
