cm ⇄ in
Unit converter
Convert length, weight, temperature, area, volume, speed, time and data sizes between metric and imperial units. Pick a measure, type a value and see the result — plus the same value in every other unit of that measure.
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Measure
In all units
| Millimetres | 1,000 mm |
|---|---|
| Centimetres | 100 cm |
| Metres | 1 m |
| Kilometres | 0.001 km |
| Inches | 39.37007874 in |
| Feet | 3.280839895 ft |
| Yards | 1.093613298 yd |
| Miles | 0.0006213711922 mi |
| Nautical miles | 0.0005399568035 nmi |
How to use Unit converter
Step 1: Choose what you’re measuring (length, weight, temperature…).
Step 2: Enter a value and choose the “from” and “to” units.
Step 3: Read the answer, or check the table for all units at once.
Frequently asked questions
How many centimetres are in an inch?
Exactly 2.54 cm. One foot is 30.48 cm and one mile is 1.609344 km.
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32. 20 °C is 68 °F; 100 °C is 212 °F.
Why are there both GB and GiB?
GB (gigabyte) is 1,000,000,000 bytes and is used by drive makers; GiB (gibibyte) is 1,073,741,824 bytes and is what many operating systems actually show.