Direct conversion
Convert inch [in] to centimeter [cm] instantly with formula, examples, chart, and FAQs.
1 inch [in] = 2.54 centimeter [cm]
1 inch [in] = 2.54 centimeter [cm]
Example: 1 inch [in] equals 2.54 centimeter [cm].
Length conversions use the metre as the reference unit. Common imperial relationships are exact where standardized, such as 1 inch = 0.0254 metre and 1 foot = 0.3048 metre.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
The inch is an imperial and US customary length unit equal to exactly 2.54 centimeters.
HistoryThe inch has older customary origins and was standardized internationally as exactly 25.4 millimeters.
Current useInches are widely used for screen sizes, construction, product dimensions, clothing, tools, and household measurements.
The centimeter is one hundredth of a meter and is a convenient metric unit for small everyday lengths.
HistoryCentimeters come from the decimal metric system, where prefixes make units scale cleanly by powers of ten.
Current useCentimeters are common for body measurements, clothing sizes, school work, crafts, furniture, and product dimensions.
| inch [in] | centimeter [cm] |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 5 | 12.7 |
| 10 | 25.4 |
| 20 | 50.8 |
| 25 | 63.5 |
| 50 | 127 |
| 100 | 254 |
| 1000 | 2540 |
Use this formula: 1 inch [in] = 2.54 centimeter [cm] Enter your value in the calculator and the result updates instantly.
1 inch [in] equals 2.54 centimeter [cm].
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