🔄 Unit Converters
Length Converter
Convert between metric and imperial length units. Type in any field and all others update live.
Millimeter (mm)
Centimeter (cm)
Meter (m)
Kilometer (km)
Inch (in)
Foot (ft)
Yard (yd)
Mile (mi)
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Free Online Length & Distance Converter
Our free length converter converts between all major units of length and distance — millimetres, centimetres, metres, kilometres, inches, feet, yards and miles. It's useful for construction, engineering, travel, cooking, DIY projects and academic work where you need to switch between metric and imperial measurements quickly.
Simply enter a value in any unit and all other units update instantly. No dropdown to select — just type your measurement and see all conversions at once.
📏 Metric & Imperial
mm, cm, m, km, inches, feet, yards, miles and more.
⚡ Instant Results
Type in any field — all others update in real time.
🎯 High Precision
Results to multiple decimal places for accurate conversions.
📱 Works Everywhere
Mobile-friendly — use it on your phone during DIY projects.
Common Length Conversions
- 1 inch = 2.54 centimetres
- 1 foot = 30.48 centimetres = 12 inches
- 1 yard = 0.9144 metres = 3 feet
- 1 mile = 1.60934 kilometres = 5,280 feet
- 1 kilometre = 0.62137 miles = 1,000 metres
- 1 metre = 3.28084 feet = 100 centimetres
- 5 feet 11 inches = 180.34 centimetres
- 6 feet = 182.88 centimetres
Frequently Asked Questions
How many centimetres are in an inch?
There are exactly 2.54 centimetres in one inch, by international definition. This is the basis for all metric-imperial length conversions. So 12 inches = 30.48 cm, 1 foot = 30.48 cm, and 1 yard = 91.44 cm.
How do I convert feet and inches to centimetres?
First convert feet to inches by multiplying by 12, then add your extra inches, then multiply the total inches by 2.54. For example, 5 feet 8 inches = (5 × 12) + 8 = 68 inches × 2.54 = 172.72 cm. Our converter handles this automatically — enter feet in the feet field and inches in the inches field.
How many kilometres is a mile?
One mile equals exactly 1.609344 kilometres. As a rough guide, 5 miles ≈ 8 km. This is useful when reading road signs in the UK (miles) versus continental Europe (km). A 10-mile run is approximately 16.1 km.
What units are used for fabric and sewing measurements?
Fabric is typically measured in metres (metric countries) or yards (US and UK). 1 yard = 0.9144 metres, so 1 metre is slightly longer than 1 yard. Many patterns give measurements in both. This converter handles both units so you can easily switch between them.
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