Convert inches to centimetres
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1 in = 2.54 cm
1 inch = 2.54 centimetres
In all units
- millimetres
- 25.4 mm
- centimetres
- 2.54 cm
- metres
- 0.0254 m
- kilometres
- 0.0000254 km
- inches
- 1 in
- feet
- 0.0833333 ft
- yards
- 0.0277778 yd
- miles
- 0.0000157828 mi
- nautical miles
- 0.0000137149 nmi
- light years
- 2.6848e-18 ly
inches to centimetres
| in | cm |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 4 | 10.16 |
| 5 | 12.7 |
| 10 | 25.4 |
| 15 | 38.1 |
| 20 | 50.8 |
| 25 | 63.5 |
| 50 | 127 |
| 100 | 254 |
| 1’000 | 2’540 |
Frequently asked questions
How accurate are the results?
Calculations use the defined conversion factors, e.g. 1 inch = 2.54 cm and 1 pound (lb) = 0.45359237 kg. Six significant digits are shown.
How much is a pound?
The English pound (lb) weighs 453.59 grams. In everyday use in Switzerland and Germany, “ein Pfund” (a pound) often means 500 grams; both are available.
Why does my computer show fewer GB than on the box?
Manufacturers calculate 1 GB = 1000 MB, Windows uses 1024 (actually GiB). Windows therefore shows a 1 TB hard drive as about 931 “GB”.