Centimetres to inches
Convert centimetres to inches for screens, sewing and everyday measurements. View common sizes and reverse the conversion.
Result for the values shown.
Calculations run in your browser.
What to enter
| Input | Meaning and units |
|---|---|
| Value | Enter value using the definition in the method and example. |
| From | Select the unit or currency in which the entered number is currently expressed. |
| To | Select the unit or currency you need for the answer. |
Understanding your result
The converted value describes the same length quantity in the selected target unit. Display rounding does not add precision to the original measurement.
Common mistakes
- Confusing the source and target units, or overlooking a prefix or case-sensitive symbol.
Check your calculation
- Convert to the target unit and then reverse the direction. Within display rounding, you should recover the original value.
Read the length measurement guide · Calculation checks, sources and review limits
How do I convert centimetres to inches?
Enter the value in centimetres to find the same length quantity in inches. The number changes to match the unit; the underlying quantity stays the same. Check the definitions below when a unit has more than one convention.
Common uses
- Compare distances or dimensions expressed in different units.
- Translate measurements before using them in a calculation.
How it works
Use the exact definition stored in the unit library. inches = centimetres ÷ 2.54. The table below rounds to six significant digits; the interactive result displays up to twelve. Use the swap button for the reverse direction.
Worked example
A 30 cm ruler measures approximately 11.811 inches.
Common values
Use “Swap units” above for the reverse conversion. Values below are rounded to six significant digits.
| Centimetres | Inches |
|---|---|
| 1 | 0.393701 |
| 5 | 1.9685 |
| 10 | 3.93701 |
| 20 | 7.87402 |
| 30 | 11.811 |
| 50 | 19.685 |
| 100 | 39.3701 |