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Length Converter
Convert between metric and imperial length units: cm, m, km, inch, foot, yard and mile — instantly and accurately.
Conversion Formula
1 inch = 2.54 cm · 1 foot = 0.3048 m · 1 yard = 0.9144 m · 1 mile = 1.609344 km
Common Length Conversions
| From | Equals | Also |
|---|
| 1 cm | 0.393701 in | 10 mm |
| 1 m | 3.28084 ft | 100 cm |
| 1 km | 0.621371 mi | 1000 m |
| 1 inch | 2.54 cm | 25.4 mm |
| 1 foot | 30.48 cm | 12 inches |
| 1 mile | 1.609344 km | 5280 ft |
How to Convert Length Units
- Enter the length you want to convert (e.g. 100).
- Choose the From unit — e.g. Centimetre.
- Choose the To unit — e.g. Inch.
- Click Convert to get an instant result.
Metric & Imperial
Supports millimetres, centimetres, metres, kilometres, inches, feet, yards, miles and nautical miles.
Accurate Results
Uses exact conversion factors — 1 inch = 2.54 cm, 1 mile = 1.609344 km, etc.
Free & Instant
No registration, no ads interrupting your work, no limits. Convert as many times as you need.
Frequently Asked Questions
How many centimetres are in an inch?+
1 inch = 2.54 centimetres exactly.
How do I convert cm to feet?+
Divide the value in centimetres by 30.48. Example: 180 cm ÷ 30.48 = 5.9055 ft.
How many metres are in a mile?+
1 mile = 1,609.344 metres (exactly).
Is this length converter accurate?+
Yes. It uses exact conversion factors defined by international standards.
Does it work on mobile?+
Yes. The converter works in any modern browser on desktop, tablet or mobile.
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