How to convert centimetres to inches
Enter a length in centimetres and read it in inches, and in feet and inches underneath. The result updates as you type.
One centimetre is 0.393700787402 inches, which follows from the exact definition of the inch as 2.54 cm.
1 centimetre = 0.393700787402 inches
Formula: inches = centimetres × 0.393700787402
- Divide the number of centimetres by 2.54, which is the same as multiplying by 0.393700787402.
- To write the answer as feet and inches, divide the inches by 12 for the feet and keep the remainder as inches. For example, 180 cm = 70.87 in, which reads as 5 ft 10.9 in.
- For a quick estimate, multiply by 0.4. It runs about 1.6% high.
Common conversions
| Centimetres (cm) | Inches (in) |
|---|---|
| 1 cm | 0.393701 in |
| 5 cm | 1.9685 in |
| 10 cm | 3.93701 in |
| 20 cm | 7.87402 in |
| 50 cm | 19.685 in |
| 100 cm | 39.3701 in |
| 150 cm | 59.0551 in |
| 170 cm | 66.9291 in |
| 180 cm | 70.8661 in |
| 200 cm | 78.7402 in |
Values are computed by the same converter as above, rounded to six significant digits. Need the other direction? See Inches to Centimetres.
Worked examples
A person’s height
180 cm = 70.9 in, or 5 ft 10.9 in.
A shorter height
165 cm = 65.0 in, or 5 ft 5.0 in.
A phone screen
A phone screen 15.5 cm on the diagonal is 15.5 cm = 6.10 in.
Things to keep in mind
- Heights are normally rounded to the nearest inch. The feet and inches line shows one decimal place of an inch so you can round it as you prefer.
- For very small measurements, millimetres to inches is available in the length converter.