Length & Distance Converter
Convert length and distance — mm, cm, m, km, inches, feet, miles, nautical miles, light years and parsecs.
What Is the Length & Distance Converter?
The Length & Distance Converter converts between every common unit of length — nanometers, micrometers, millimeters, centimeters, meters and kilometers, plus inches, feet, yards, miles and nautical miles, and even astronomical units, light years and parsecs. Enter one value and see it in all units. All math is local.
How It Works
Type a value, choose its unit and the target unit, and the result appears instantly. The swap button flips the pair, and a table shows your value converted into every unit.
When to Use It
Use it for DIY and construction, travel distances, science and astronomy homework, switching between metric and imperial, or any everyday length conversion.
Frequently Asked Questions
- Does it support astronomical distances?
- Yes — astronomical units (AU), light years and parsecs are included, using the IAU-defined values.
- What's the difference between a mile and a nautical mile?
- A statute mile is 1,609.344 m; a nautical mile is 1,852 m, used in aviation and shipping. Both are included.
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