Home / Length Converter
Length Converter
Convert meters, kilometers, miles, yards, feet, inches and nautical miles instantly — no button to press.
Where do meters, miles and the rest come from?
The metric system (meters, centimeters, kilometers) is the official standard of measurement in most of the world, and the meter is defined by the distance light travels in a precisely fixed fraction of a second. Imperial units like inches, feet, yards and miles remain common in the US, the UK, and certain industries (US-style construction, aviation) worldwide. When a floor plan, a spec sheet, or an imported product's dimensions are given in inches or feet, this converter gets you the exact metric equivalent without doing the arithmetic by hand.
The nautical mile is an interesting exception — unlike a regular mile, it's defined as one minute of arc along the Earth's great circle, and it's used in sea and air navigation, which is why it differs from the statute mile you see on US highways. Mixing the two up can throw off a flight-distance or sea-distance calculation noticeably. Use this converter for any of the 9 available length units — just enter a number and pick the units to convert from and to.
Frequently asked questions
How many kilometers is one mile?
One mile equals 1.609344 kilometers. Multiply a distance in miles by 1.609344 to get kilometers.
How many centimeters is one inch?
One inch equals 2.54 centimeters, so 12 inches (1 foot) equals 30.48 centimeters.
What is the difference between a nautical mile and a regular mile?
A nautical mile, used in sea and air navigation, equals 1852 meters, while a regular (statute) mile equals 1609.344 meters — about 15% shorter.
How do I convert feet to meters?
One foot equals 0.3048 meters. Multiply the number of feet by 0.3048 to get meters.