Length converter.
From the smallest detail to the longest way home.
Aligned marks describe the same amount. Scale labels are rounded to 5 significant digits.
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How to convert length.
Length conversion changes the unit, not the distance. One inch is exactly 2.54 centimeters, one foot is 12 inches, and one yard is 3 feet. The mile used here is the international mile of 1,609.344 meters.
Centimeters = inches × 2.54. Feet = meters ÷ 0.3048.
A few everyday examples.
6 ft182.88 cm10 km6.21371192237334 mi12 in1 ftDetails worth knowing.
A nautical mile is exactly 1,852 meters, different from a land mile. These are international feet, not the historical US survey foot. Enter feet and inches separately using their respective units.
Using this length converter.
Choose your source and destination units, then enter a value. The result updates as you type. Use Swap to reverse the conversion while keeping the same quantity, or Convert & save to keep your inputs in your last 10 conversions. Select a saved entry to restore it, including after a page reload.
Calculations use decimal arithmetic and are rounded to 15 significant digits. Some unit relationships produce repeating decimals, so displayed answers are approximations. Saved queries stay in your browser and can be removed with Clear.
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