Metric Units
Convert kilometers, meters, centimeters, millimeters and more.
Convert meters, kilometers, miles, feet, inches, yards, centimeters, millimeters and other length units quickly and accurately.
Enter a value and choose your units
Choose a common length conversion
Quick Reference
Popular metric and imperial length conversion values for quick reference.
| Conversion | Equivalent |
|---|---|
| 1 kilometer | 1,000 meters |
| 1 meter | 100 centimeters |
| 1 centimeter | 10 millimeters |
| 1 inch | 2.54 centimeters |
| 1 foot | 12 inches |
| 1 yard | 3 feet |
| 1 mile | 1,760 yards |
| 1 nautical mile | 1,852 meters |
Converter Features
Convert kilometers, meters, centimeters, millimeters and more.
Convert miles, yards, feet and inches instantly.
Get fast results with formulas and reverse conversions.
See the entered length converted into every supported unit.
Simple Process
Type the length or distance value you want to convert.
Choose the original unit and the target unit.
Get the converted value, formula and equivalent units.
Length Conversion Guide
Our free online length converter helps you convert measurements between metric, imperial, US customary and nautical length units. Enter a value, select the original unit and choose the unit you want to convert into.
The tool supports common conversions such as meters to feet, feet to meters, kilometers to miles, miles to kilometers, inches to centimeters and centimeters to inches.
Length conversion is the process of expressing the same physical distance using a different measurement unit. For example, a distance written in meters can also be expressed in feet, inches, yards or miles.
A conversion does not change the physical length. It only changes the numerical value and unit used to represent that length.
Common metric length units include kilometers, meters, decimeters, centimeters and millimeters. Smaller scientific-scale units include micrometers and nanometers.
Metric conversions are especially convenient because unit relationships follow powers of ten. For example, one kilometer equals 1,000 meters, one meter equals 100 centimeters and one centimeter equals 10 millimeters.
Common imperial and US customary length units include inches, feet, yards and miles. These units are frequently used in everyday measurements, construction, travel and other practical contexts.
Common relationships include 12 inches in one foot, 3 feet in one yard and 1,760 yards in one mile.
To convert meters to feet, multiply the meter value by approximately 3.28084. For example, 10 meters is approximately 32.8084 feet.
To convert kilometers to miles, multiply the kilometer value by approximately 0.621371. For example, 10 kilometers is approximately 6.21371 miles.
To convert inches to centimeters, multiply the inch value by 2.54. For example, 10 inches equals 25.4 centimeters.
A length converter can be useful for education, construction, engineering, travel, international product dimensions, home improvement, science, fitness measurements and everyday calculations.
Keep extra decimal places during intermediate calculations and round only the final answer when precision matters.
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