Enter a value and select Convert.
How to use this converter
Enter a signed decimal where allowed, then select Convert or press Enter. Comma decimals and expressions are rejected rather than guessed. Copy produces a plain conversion statement without promotional text.
Definition and review
Constants follow NIST Guide to the SI, Appendix B.8. Values are calculated locally; raw numbers are not uploaded, stored, placed in URLs, or included in analytics.
Need the opposite direction? Use the Inches to Centimeters Converter.
Common centimeters conversions
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 cm | 0.3937007874 in |
| 5 cm | 1.968503937 in |
| 10 cm | 3.937007874 in |
| 20 cm | 7.874015748 in |
| 25 cm | 9.842519685 in |
| 30 cm | 11.81102362 in |
| 50 cm | 19.68503937 in |
| 100 cm | 39.37007874 in |