Length Converter
Convert between 50+ length units from around the world and throughout history
Unit Categories
Common Conversions
- Meters to Feet1 m = 3.28084 ft
- Kilometers to Miles1 km = 0.621371 mi
- Inches to Centimeters1 in = 2.54 cm
- Feet to Meters1 ft = 0.3048 m
- Miles to Kilometers1 mi = 1.60934 km
Did You Know?
The meter was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a meridian through Paris.
The light-year is about 9.5 trillion kilometers, making it one of the largest units of length in practical use.
The Planck length is the smallest meaningful length in physics, beyond which the very concept of distance may lose meaning.
The cubit is one of the oldest units of length, dating back to ancient Egypt around 3000 BCE.