Length Unit Converter
Convert metric, imperial, Chinese, and astronomical units instantly
Common Unit Reference
Automatically converts all units based on 1 source unit. Click a row to set that unit as the target.
| Unit | Converted Value (based on 1 source unit) |
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Unit Information
Online Conversion of Metric, Imperial, Chinese and Astronomical Length Units
What Is Length Unit Conversion?
Length unit conversion changes the same length from one measurement unit to another, such as kilometers to meters, meters to feet or miles to kilometers. The tool supports quick conversion between metric, imperial, Chinese and some astronomical-scale units.
Which Length Units Are Supported?
Supported units include kilometers, meters, decimeters, centimeters, millimeters, micrometers, nanometers, picometers, angstroms, inches, feet, yards, miles, nautical miles, Chinese li, zhang, chi, cun, mils, typographic points, light-years, astronomical units and parsecs.
How to Convert Length Units?
Enter the value, select the source and target units, and the system automatically calculates the result. The quick reference table can also use the current source unit as a basis to display corresponding values in other common units.
Length Conversion Examples
1 kilometer equals 1000 meters, or 1 km = 1000 m. 1 mile equals 1.609344 kilometers, and 1 foot equals 0.3048 meters.
Length Unit Conversion Use Cases
Length conversion can be used for engineering measurement, architectural design, machining, map measurement, international logistics, daily life and study. Conversion between Chinese and imperial units and metric units is particularly useful for cross-region data verification.
Frequently Asked Questions
How Many Meters Are in 1 Kilometer?
1 kilometer equals 1000 meters.
How Many Kilometers Are in 1 Mile?
1 mile equals 1.609344 kilometers.
How Many Meters Are in 1 Foot?
1 foot equals 0.3048 meters.
Why Do Length Conversion Results Have Many Decimal Places?
Some units do not have integer conversion relationships, so decimal values may result after conversion. The tool displays the calculated values appropriately.
What Is Length Unit Conversion?
- Support metric, imperial, Chinese and astronomical-scale length units
- Enter a value and select source and target units for instant conversion
- Provide a common unit reference table to view multiple equivalent values
- Support swapping source and target units and quickly copying conversion results