Length Converter
Convert between metric and imperial length units. All conversions update simultaneously as you type.
All Conversions
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Millimeters (mm)
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Centimeters (cm)
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Meters (m)
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Kilometers (km)
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Inches (in)
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Feet (ft)
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Yards (yd)
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Miles (mi)
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How to Use the Length Converter
- Enter a value in the input field.
- Select the source unit from the dropdown.
- View all conversions — every unit updates instantly.
- Copy all results with the Copy All button.
Common Length Conversions
| From | To | Multiply By |
|---|---|---|
| 1 inch | Centimeters | 2.54 |
| 1 foot | Meters | 0.3048 |
| 1 yard | Meters | 0.9144 |
| 1 mile | Kilometers | 1.60934 |
| 1 meter | Feet | 3.28084 |
| 1 kilometer | Miles | 0.621371 |
Frequently Asked Questions
How many centimeters are in an inch?
There are exactly 2.54 centimeters in one inch. This is the internationally agreed-upon conversion factor.
How many feet are in a mile?
There are exactly 5,280 feet in one mile. A mile is also equal to 1,760 yards or 1,609.34 meters.
What is the difference between metric and imperial length?
The metric system (mm, cm, m, km) is based on powers of 10, making conversions straightforward. The imperial system (in, ft, yd, mi) uses varying conversion factors (12 inches per foot, 3 feet per yard, 5,280 feet per mile).