inch → centimetre
1 inch = 2.54 centimetres; 1 centimetre = 0.3937 inches.
inch to centimetre
1 in = 2.54 cm
inch → centimetre conversion table
| inch (in) | centimetre (cm) |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 5 | 12.7 |
| 8 | 20.32 |
| 10 | 25.4 |
| 15 | 38.1 |
| 20 | 50.8 |
| 25 | 63.5 |
| 30 | 76.2 |
| 40 | 101.6 |
| 50 | 127 |
| 60 | 152.4 |
| 80 | 203.2 |
| 100 | 254 |
Formula and notes
1 inch = 2.54 centimetres; conversely, 1 centimetre = 0.3937 inches.
The converter uses the base unit method: inch has a factor of 0.0254 and centimetre has a factor of 0.01, so the target value = source value × (0.0254 ÷ 0.01).
Length and area converters use exact international definitions, so results are consistent across calculators.
Other length conversions
inch to centimetre FAQ
How do I convert centimetre to inch?
Multiply the value in centimetre by 0.3937 to get inch.
Is the conversion exact?
Yes. Every unit is defined by a fixed factor relative to the base unit, so the result is exact apart from rounding.