Inches to Centimeters (in to cm)

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cm =
in
 
_______
 
 
0.39370
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More information: Inches
More information: Centimeters
Cm to Inches (Swap Units) Inches to Centimeters table

1in 2.54cm
2in 5.08cm
3in 7.62cm
4in 10.16cm
5in 12.7cm
6in 15.24cm
7in 17.78cm
8in 20.32cm
9in 22.86cm
10in 25.4cm

Inches

Use of the inch can be traced back as far as the 7th century. The first explicit definition we could find of its length was after 1066 when it was defined as the length of three barleycorns. This was not a satisfactory reference as barleycorn lengths vary naturally. The British Standards Institute defined the inch as 25.4mm in 1930 in the document "Metric Units in Engineering: Going SI". In March 1932 the American Standards Association were asked to rule on whether to adopt the same value (at the time the American inch was 1/.03937 mm which approximated to 25.400051 mm). Because the values were so close, and because Britain has already settled on that value, the ASA adopted this value on March 13, 1933.

cm =
in
 
_______
 
 
0.39370

Centimeters

The centimetre is a unit of length in the metric system, equal to one-hundredth of a metre.

1cm is equivalent to 0.39370 inches.

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