Length Converter

Convert metric, Imperial and nautical length units in one workspace. Enter a value once to see every useful equivalent.

How length converter works

Every value is converted through meters. Exact definitions are used where available: one inch is exactly 2.54 centimeters and one international mile is exactly 1,609.344 meters.

Example formula: kilometers × 0.6213711922 = miles

Accurate, private conversion

The conversion engine uses standardized constants and keeps calculation precision separate from display formatting. Your entered values stay in this browser and are not added to the URL or sent to the server.

Frequently asked questions

How many meters are in a kilometer?

There are exactly 1,000 meters in one kilometer.

Are nautical miles the same as land miles?

No. A nautical mile is exactly 1,852 meters, while an international mile is exactly 1,609.344 meters.