How to convert centimeters to inches
- Take the value in centimeters.
- Use the formula inches = centimeters ÷ 2.54.
- For example, 2.54 cm is 1 in.
About centimeters and inches
An inch is defined as exactly 2.54 centimeters, so to turn centimeters into inches you divide by 2.54. One centimeter is about 0.3937 inches, a little under four tenths of an inch.
You run into this conversion when a product listing, a sewing pattern or a medical form gives sizes in one system and you think in the other.
Examples
- 2.54 cm (one inch) is 1 in
- 30 cm (a standard school ruler) is 11.81 in
- 170 cm (an average adult height) is 66.93 in
- 21 cm (the short side of an A4 sheet) is 8.27 in
Centimeters to inches chart
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 | 0.394 |
| 2 | 0.787 |
| 3 | 1.18 |
| 4 | 1.57 |
| 5 | 1.97 |
| 6 | 2.36 |
| 7 | 2.76 |
| 8 | 3.15 |
| 9 | 3.54 |
| 10 | 3.94 |
| 12 | 4.72 |
| 15 | 5.91 |
| Centimeters (cm) | Inches (in) |
|---|---|
| 20 | 7.87 |
| 25 | 9.84 |
| 30 | 11.81 |
| 40 | 15.75 |
| 50 | 19.69 |
| 60 | 23.62 |
| 70 | 27.56 |
| 80 | 31.5 |
| 90 | 35.43 |
| 100 | 39.37 |
| 150 | 59.06 |
| 200 | 78.74 |