Convert centimetres to inches for product dimensions, clothing measurements, schoolwork, crafts, and construction drawings. One inch is exactly 2.54 centimetres.
Divide the centimetre value by 2.54. Because 1 inch is defined as exactly 2.54 cm, the conversion factor is exact.
Example: 1 centimeter [cm] equals 0.393701 inch [in].
Examples
1 centimeter [cm] = 0.393701 inch [in]
2 centimeter [cm] = 0.787402 inch [in]
5 centimeter [cm] = 1.968504 inch [in]
10 centimeter [cm] = 3.937008 inch [in]
20 centimeter [cm] = 7.874016 inch [in]
25 centimeter [cm] = 9.84252 inch [in]
Practical Uses for cm to inches
Product dimensionsClothing measurementsDIY and craftsSchool assignmentsConstruction drawingsScreen and frame sizes
Sources and Accuracy
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: 2026-08-14.
About These Units
centimeter [cm]
Definition
The centimeter is one hundredth of a meter and is a convenient metric unit for small everyday lengths.
History
Centimeters come from the decimal metric system, where prefixes make units scale cleanly by powers of ten.
Current use
Centimeters are common for body measurements, clothing sizes, school work, crafts, furniture, and product dimensions.
inch [in]
Definition
The inch is an imperial and US customary length unit equal to exactly 2.54 centimeters.
History
The inch has older customary origins and was standardized internationally as exactly 25.4 millimeters.
Current use
Inches are widely used for screen sizes, construction, product dimensions, clothing, tools, and household measurements.
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How to Convert
Enter the value in the “From value” field.
Confirm the source unit is centimeter [cm].
Confirm the target unit is inch [in].
Read the instant result and formula.
Practical Conversion Tips
Keep extra decimals for small precision work.
Check whether a seller rounded the original measurement.
Use millimetres when tolerances are tighter than 0.1 cm.