Length Converter

Convert between metric, imperial, nautical, and other measurement systems

Options

Unit Categories

Convert From

Convert To

Frequently Asked Questions

What is a nautical mile?
A nautical mile is a unit of measurement used in maritime and air navigation. It's based on the circumference of the Earth and is equal to exactly 1,852 meters or approximately 1.15078 statute miles.
How many centimeters are in an inch?
There are exactly 2.54 centimeters in one inch. This conversion factor is defined internationally and used for all inch-to-cm conversions.
What's the difference between imperial and US customary units?
While similar, imperial units (used in the UK) and US customary units have some differences, particularly for volume measurements. For length, the main difference is that the US survey foot and mile are slightly different from the international foot and mile used in imperial system.