Length Unit Converter
Convert between metric and imperial length units instantly. Enter a value, select the source unit, and see all conversions at once.
Value & Unit
Converting…
Convert between metric and imperial length units instantly. Enter a value, select the source unit, and see all conversions at once.
| From | To | Multiply by |
|---|---|---|
| kilometers (km) | miles (mi) | 0.621371 |
| miles (mi) | kilometers (km) | 1.609344 |
| meters (m) | feet (ft) | 3.28084 |
| feet (ft) | meters (m) | 0.3048 |
| centimeters (cm) | inches (in) | 0.393701 |
| inches (in) | centimeters (cm) | 2.54 |
| meters (m) | yards (yd) | 1.09361 |
| yards (yd) | meters (m) | 0.9144 |
The metric system is based on the meter (m), the SI base unit of length. All other metric units are powers of 10 of the meter: a kilometer is 1,000 meters, a centimeter is 1/100 of a meter, a millimeter is 1/1,000 of a meter. Micrometers (μm) and nanometers (nm) are used in science, electronics, and nanotechnology.
The imperial system uses the inch, foot, yard, and mile. The relationships are: 12 inches = 1 foot, 3 feet = 1 yard, 1,760 yards = 1 mile. The inch is defined as exactly 2.54 cm.
The nautical mile (nmi) equals exactly 1,852 meters. It is used in maritime and air navigation because one nautical mile corresponds to one arcminute of latitude, simplifying navigation calculations.
One meter equals 3.28084 feet. To convert meters to feet, multiply by 3.28084.
One mile equals exactly 1.609344 kilometers.
One inch equals exactly 2.54 centimeters.
A nautical mile equals exactly 1,852 meters (≈ 1.151 statute miles).
A meter (1 m) is slightly longer than a yard (0.9144 m). One meter ≈ 1.09361 yards.