How to use the centimeters to inches converter
Enter centimeters and divide by 2.54 to convert to inches.
Centimeters to inches
Because 1 inch is exactly 2.54 centimeters, the reciprocal conversion is exact before display rounding.
Example: Harper converts a shelf width
Harper has a shelf 30.48 centimeters wide. Dividing by 2.54 gives exactly 12 inches, or 1 foot.
For 30 centimeters, the result is approximately 11.811024 inches. Keep extra digits for further calculations and round to the measuring precision the job requires.
Distinguish decimal inches from feet and inches
Divide centimeters by 2.54 to get decimal inches. For 30.48 cm, the result is 12 inches, which is 1 foot.
For heights or furniture dimensions, use the feet-and-inches reference as well. A value such as 5.5 feet means 5 feet 6 inches, not 5 feet 5 inches.
Common centimeter-to-inch conversions
Divide by 2.54. The table uses decimal inches; 0.5 inch means half an inch, not five inches.
| Centimeters | Inches |
|---|---|
| 1 | 0.3937 |
| 2.54 | 1 |
| 10 | 3.937 |
| 30 | 11.811 |
| 50 | 19.685 |
| 100 | 39.3701 |
| 150 | 59.0551 |
| 180 | 70.8661 |
Assumptions and limitations
What the estimate assumes
Displayed feet-and-inches values may round the remaining inches.
Sources and reference material
Centimeters to Inches Converter FAQs
How many inches are in 100 centimeters?
About 39.37 inches.
How do I convert centimeters to inches?
Divide centimeters by 2.54.
Does this show feet and inches?
Yes, as an additional reference.
Is 2.54 exact?
Yes. The international inch is defined as exactly 2.54 centimeters.
Exact unit conversion; displayed decimals may be rounded for readability.