cm to Inches
Convert centimeters to inches and back. Useful for screen sizes, clothing measurements and wheel diameters that are labeled in inches.
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Common values
Formula
inch = cm × 0.3937007874
One inch is defined as exactly 2.54 cm. A monitor’s "inches" measure the diagonal, not the width.
Frequently asked questions
QHow many inch is 1 cm?
1 cm is 0.394 inch, and 10 cm is 3.937 inch. Type any value in the box above to convert instantly.
QAnd how many cm is 1 inch?
1 inch is 2.54 cm. This converter works both ways, so typing in the right box updates the left one.
QWhere is this unit used?
One inch is defined as exactly 2.54 cm. A monitor’s "inches" measure the diagonal, not the width.
Other converters
Traditional units (geun, doe, majigi and so on) vary by region and product.