Centimetres to inches converter
Inches (in)
1 centimetre = 0.3937007874 inches
How to convert centimetres to inches
in = cm × 0.393700787402
Multiply the number of centimetres by 0.393700787402 to get inches. Going the other way, divide by 0.393700787402 (or multiply by 2.54).
One centimetre is exactly defined as 0.393700787402 inches (to 12 significant figures), and one inch is 2.54 centimetres.
Worked examples
- Convert 5 centimetres: 5 × 0.393700787402 = 1.968503937 1.968503937 inches.
- Convert 12.5 centimetres: 12.5 × 0.393700787402 = 4.921259843 4.921259843 inches.
- Convert 250 centimetres: 250 × 0.393700787402 = 98.42519685 98.42519685 inches.
Quick-reference table
| cm | in |
|---|---|
| 1 | 0.3937007874 |
| 2 | 0.7874015748 |
| 3 | 1.181102362 |
| 5 | 1.968503937 |
| 10 | 3.937007874 |
| 15 | 5.905511811 |
| 20 | 7.874015748 |
| 25 | 9.842519685 |
| 50 | 19.68503937 |
| 75 | 29.52755906 |
| 100 | 39.37007874 |
| 1,000 | 393.7007874 |
| in | cm |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 5 | 12.7 |
| 10 | 25.4 |
| 15 | 38.1 |
| 20 | 50.8 |
| 25 | 63.5 |
| 50 | 127 |
| 75 | 190.5 |
| 100 | 254 |
| 1,000 | 2,540 |
Related conversions
Frequently asked questions
How many inches are in 1 centimetre?
1 centimetre equals 0.3937007874 inches.
What is the formula to convert centimetres to inches?
Use in = cm × 0.393700787402. Multiply the number of centimetres by 0.393700787402 to get inches. Going the other way, divide by 0.393700787402 (or multiply by 2.54).
What is 100 centimetres in inches?
100 centimetres is 39.37007874 inches.