Length Converter — Convert Between All Length Units
Use this free length converter to convert between metres, centimetres, millimetres, inches, feet, yards, kilometres and miles. Type into any field for instant results across all units simultaneously.
Length Converter
Type in any field to convert all units instantly
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Metric vs Imperial Length
The metric system measures length in millimetres, centimetres, metres and kilometres. The imperial system uses inches, feet, yards and miles. This converter handles all of these instantly making it easy to switch between systems for any task.
Common Length Conversions
1 metre = 100 centimetres = 1000 millimetres. 1 inch = 2.54 centimetres. 1 foot = 12 inches = 30.48 centimetres. 1 yard = 3 feet = 91.44 centimetres.
When Is Length Conversion Useful?
Length conversion is useful for construction and DIY (converting between metric and imperial measurements), understanding clothing and shoe sizes across countries, reading product dimensions from overseas retailers, sports (converting race distances), and science and engineering calculations.
FAQs
How do I convert cm to inches?
Divide centimetres by 2.54. For example 30 cm ÷ 2.54 = 11.81 inches. Or type 30 into the centimetres field above.
How many centimetres are in a foot?
There are exactly 30.48 centimetres in one foot.
How many millimetres are in an inch?
There are exactly 25.4 millimetres in one inch.
Is this calculator free?
Yes completely free with no sign-up needed.