The short answer
- 1 cm ≈ 0.3937008 in
- 1 in = 2.54 cm
Worked example30 cm ÷ 2.54 = 11.81102 in
UNIT CONVERSION
← Length converterCentimetres to inches
To convert centimetres to inches, divide the number of centimetres by 2.54.
What the units mean
Centimetre. The centimetre is one hundredth of a metre, the SI base unit of length.
Inch. The inch is exactly 2.54 centimetres, fixed by the international yard and pound agreement of 1959. There are 12 inches in a foot.
Centimetres to inches table
| Centimetres (cm) | Inches (in) |
|---|---|
| 0.5 | 0.1968504 |
| 1 | 0.3937008 |
| 2 | 0.7874016 |
| 3 | 1.181102 |
| 4 | 1.574803 |
| 5 | 1.968504 |
| 6 | 2.362205 |
| 7 | 2.755906 |
| 8 | 3.149606 |
| 9 | 3.543307 |
| 10 | 3.937008 |
| 12 | 4.724409 |
| 15 | 5.905512 |
| 20 | 7.874016 |
| 25 | 9.84252 |
| 30 | 11.81102 |
| 40 | 15.74803 |
| 50 | 19.68504 |
| 60 | 23.62205 |
| 70 | 27.55906 |
| 75 | 29.52756 |
| 80 | 31.49606 |
| 90 | 35.43307 |
| 100 | 39.37008 |
| 150 | 59.05512 |
| 200 | 78.74016 |
| 250 | 98.4252 |
| 500 | 196.8504 |
| 1,000 | 393.7008 |
Values are rounded to 7 significant figures.
Common questions
How do I convert centimetres to inches?
Divide the number of centimetres by 2.54. For example, 30 cm ÷ 2.54 = 11.81102 in.
How many inches are in one centimetre?
One centimetre is about 0.3937008 inches.
Is this conversion exact?
Yes. Both units have exact legal definitions, so the factor is exact. Values on this page are rounded to 7 significant figures.