Inches to CM Converter
Convert inches to centimetres quickly and accurately. Type a length in inches and the equivalent in centimetres appears instantly.
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Formula
To convert inches to centimetres, multiply the value by 2.54.
1 in = 2.54 cm
centimetres = inches × 2.54
About inches and centimetres
The centimetre is the everyday metric unit for body measurements, paper sizes and small objects — one hundredth of a metre.
The inch is its imperial counterpart, still used for screen sizes, tyre diameters, pipe fittings and printing worldwide, even in countries that are otherwise fully metric.
Accuracy
One inch is exactly 2.54 centimetres, which makes this one of the cleanest conversions in the imperial system: to go from inches to centimetres you can simply multiply by 2.54 with no rounding error at all.
Inches to Centimetres conversion table
| Inches | Centimetres |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 6 in | 15.24 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 15 in | 38.1 cm |
| 20 in | 50.8 cm |
| 24 in | 60.96 cm |
| 36 in | 91.44 cm |
Frequently asked questions
How do you convert inches to centimetres?
Centimetres = inches × 2.54. For example, 1 in equals 2.54 cm.
How many centimetres is 12 inches?
12 inches — one foot — is exactly 30.48 centimetres.
What size is a 15 inch laptop in centimetres?
15 inches is 38.1 centimetres. Screen sizes are measured diagonally, so this is the corner-to-corner distance, not the width.
How do I convert a height like 5 foot 9 into centimetres?
Convert to inches first: 5 × 12 + 9 = 69 inches. Then multiply by 2.54 to get 175.26 cm.
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