Length Converter
Convert inches, feet, miles, centimeters, meters and more — all units at once.
Converted to every unit
About this length converter
Length conversions come up constantly: furniture measured in centimeters, a height in feet and inches, a running route in kilometers. This converter switches between US customary and metric length units and shows the value in every unit at once, so you don't have to run the conversion twice.
All factors are exact by international definition — since 1959, one inch has been exactly 2.54 centimeters, which fixes the foot, yard and mile too.
How to use the Length Converter
- Type the value you want to convert.
- Choose the unit you're converting from and the unit you want.
- Read the result — the table below shows the value in every other unit.
- Use Swap to reverse the conversion.
Conversion factors
1 in = 2.54 cm · 1 ft = 0.3048 m · 1 mi = 1.609344 km
Meters are the base unit. Each unit's value in meters is: mm 0.001, cm 0.01, km 1,000, inch 0.0254, foot 0.3048, yard 0.9144, mile 1,609.344 and nautical mile 1,852.
Worked example
Someone who is 6 feet tall is 6 × 0.3048 = 1.8288 meters, or about 182.9 cm. A 10 km race is 10 ÷ 1.609344 = 6.214 miles.
Common conversions
| Inch → Centimeter | 1 in = 2.54 cm | 5 in = 12.7 cm | 10 in = 25.4 cm |
|---|---|---|---|
| Centimeter → Inch | 1 cm = 0.393701 in | 5 cm = 1.968504 in | 10 cm = 3.937008 in |
| Foot → Meter | 1 ft = 0.3048 m | 5 ft = 1.524 m | 10 ft = 3.048 m |
| Meter → Foot | 1 m = 3.28084 ft | 5 m = 16.404199 ft | 10 m = 32.808399 ft |
| Mile → Kilometer | 1 mi = 1.609344 km | 5 mi = 8.04672 km | 10 mi = 16.09344 km |
| Kilometer → Mile | 1 km = 0.621371 mi | 5 km = 3.106856 mi | 10 km = 6.213712 mi |
| Yard → Meter | 1 yd = 0.9144 m | 5 yd = 4.572 m | 10 yd = 9.144 m |
Tips for better results
- To estimate cm to inches in your head, divide by 2.5.
- A kilometer is about 0.62 miles; a mile is about 1.6 km.
Frequently asked questions
How many centimeters are in an inch?
Exactly 2.54 centimeters.
How many feet are in a meter?
About 3.28084 feet.
How do I convert feet and inches to cm?
Multiply feet by 12, add the inches, then multiply by 2.54. 5 ft 9 in = 69 in = 175.26 cm.
Last reviewed: October 2026 · Results are calculated in your browser.
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