Length Converter
Convert between metric and imperial lengths — centimetres to inches, feet to metres, kilometres to miles and more. Results update as you type, and a full table shows the value in every supported unit at once.
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What does the Length Converter do?
Imperial units are defined exactly in terms of metres: 1 inch = 2.54 cm, 1 foot = 0.3048 m, 1 yard = 0.9144 m and 1 mile = 1,609.344 m. The converter uses these exact definitions, so results are precise rather than rounded approximations.
It is handy for height (5 ft 7 in ≈ 170 cm), furniture and room sizes, running distances and travel.
How to use the Length Converter
- Enter a value.
- Choose the unit to convert from and to.
- Read the result or check the full table.
- Use “Swap units” to reverse the conversion.
Examples
Height
170 cm = 5.577 ft ≈ 5 ft 7 in.
Distance
10 km = 6.214 miles.
Common use cases
- Height and body measurements
- Room, plot and furniture sizes
- Running and cycling distances
- Engineering and school work
Features and benefits
- Private by design — your data is processed on your device and never uploaded.
- Free with no account, no watermark and no usage limits.
- Works on phones, tablets and desktops in any modern browser.
Limitations to know
- Feet and inches are shown as decimal feet; multiply the decimal part by 12 for inches.
Frequently asked questions
How many cm in an inch?
Exactly 2.54 cm.
How many feet in a metre?
About 3.28084 feet.
What is a nautical mile?
Exactly 1,852 metres, used at sea and in aviation.
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