All Length Units

How to Convert Length Units?

Length conversion is essential for everyday tasks like measuring rooms, calculating travel distances, or working on construction projects. This converter uses standardized conversion factors based on the International System of Units (SI). Simply enter a value, select your source unit, and the tool instantly calculates the equivalent in all other length units.

Units

Meter (m)

The meter is the base unit of length in the SI system. It was originally defined as one ten-millionth of the distance from the equator to the North Pole. Today, it's defined by the speed of light in vacuum. Meters are used worldwide for most length measurements in science, construction, and daily life.

Foot (ft)

The foot is a unit of length used primarily in the United States and United Kingdom. One foot equals exactly 0.3048 meters or 12 inches. It's commonly used for measuring height, room dimensions, and in construction. The plural form is 'feet'.

Inch (in)

The inch is a unit of length equal to 1/12 of a foot or 2.54 centimeters. It's widely used in the US and UK for small measurements, screen sizes, and in manufacturing. The inch is subdivided into fractions or decimal values for precision work.

Kilometer (km)

The kilometer equals 1,000 meters and is used worldwide for measuring road distances, geographic features, and long distances. It's the standard unit for vehicle odometers and speed limits in most countries except the US and UK.

Mile (mi)

The mile is a unit of length equal to 5,280 feet or approximately 1.609 kilometers. It's primarily used in the United States and United Kingdom for measuring road distances, running races, and geographic distances.

Common Length Conversions