Inches to cm
Convert inches to centimeters.
Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.
Your result
How to convert inches to centimeters
1 in = 2.54 cm. 1 inch is exactly 2.54 cm.
Formula: centimeters = inches × 2.54
Examples
- 5 in = 12.7 cm
- 12 in = 30.48 cm
- 32 in = 81.28 cm
in to cm conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 4 in | 10.16 cm |
| 5 in | 12.7 cm |
| 6 in | 15.24 cm |
| 8 in | 20.32 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 15 in | 38.1 cm |
| 18 in | 45.72 cm |
| 20 in | 50.8 cm |
| 24 in | 60.96 cm |
| 27 in | 68.58 cm |
| 30 in | 76.2 cm |
| 32 in | 81.28 cm |
| 36 in | 91.44 cm |
| 40 in | 101.6 cm |
| 48 in | 121.92 cm |
| 50 in | 127 cm |
| 55 in | 139.7 cm |
| 65 in | 165.1 cm |
Values are rounded to 4 decimal places.
How to use Inches to cm
- Enter the values you want to calculate and choose the relevant units or settings.
- The result updates as you type. Adjust the available settings if needed.
- Review the result, then use Copy result or a download link when available.
Useful next steps
How Inches to cm works
This converter multiplies your value in inches by 2.54, the exact number of centimetres in one international inch, and shows the result in centimetres. It updates as you type and runs in your browser. Results are rounded to 12 significant digits. The tool takes a single decimal number of inches, so it does not read fractions such as 5 1/2 or combined values like 5 ft 6 in; convert those to decimal inches first.
Before you start
Enter the measurement as one decimal number of inches. For fractions, divide first, so 3/8 becomes 0.375, and turn feet into inches by multiplying by 12.
A worked example
Entering 12 inches returns 30.48 cm, and 5.5 inches returns 13.97 cm.
Continue your workflow: Length, Weight, Temperature.
Common questions
How many centimetres are in an inch?
One inch is exactly 2.54 centimetres. That has been the definition of the international inch since 1959, so the factor is exact rather than rounded. To go the other way, divide centimetres by 2.54, which makes 10 cm about 3.937 inches.
How do I convert feet and inches to centimetres?
Multiply the feet by 12, add the remaining inches and enter the total. For a height of 5 ft 6 in, that is 60 + 6 = 66 inches, which converts to 167.64 cm. The tool has no separate feet field, so this step must be done first.
Can I enter a fraction like 5 1/2 inches?
Not directly. The input accepts decimal numbers only, so a space or slash causes an error. Convert the fraction first: 1/2 is 0.5, 1/4 is 0.25 and 1/8 is 0.125. Then 5 1/2 inches becomes 5.5, which converts to 13.97 cm.
How do I convert inches to millimetres?
Convert to centimetres here, then multiply by 10, since one centimetre is 10 millimetres. One inch is 2.54 cm, which is 25.4 mm exactly. For example, 0.75 inches is 1.905 cm, or 19.05 mm.