📏 Length & Distance Converter
Free online length and distance converter. Convert between millimeters, centimeters, meters, kilometers, inches, feet, yards, miles and more.
Conversion Reference Table
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Length & Distance Conversion Guide
Length is one of the most fundamental units of measurement in everyday life. Whether you're measuring a room for new furniture, checking your height on a foreign scale, or calculating the distance of a running route, having a reliable length converter saves a lot of time and avoids costly mistakes.
The metric system uses millimeters (mm), centimeters (cm), meters (m) and kilometers (km). The imperial system — still widely used in the United States and to some extent in the UK — uses inches, feet, yards and miles. Our converter handles all of these and more, including nautical miles used in aviation and shipping.
Common Length Conversions
Some of the most frequently searched length conversions include centimeters to feet and inches (popular for height measurements), miles to kilometers (for travel and running), millimeters to inches (for engineering and DIY projects), and meters to feet (for construction and real estate). Our converter handles all of these instantly.
One meter equals exactly 3.28084 feet, or 39.3701 inches. One mile equals 1.60934 kilometers. One inch equals 2.54 centimeters exactly — this is the official international definition. These are the key conversion factors to remember, and our tool applies them precisely every time.