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1.0 cm is equal to

10 millimeters

.39 inches

edge of square of area 1 cm²

edge of cube of volume 1 ml

1.5 cm — length of a very large mosquito.

2 cm — approximate width of an adult human finger

2.54 cm — 1 inch

3.1 cm — 1 attoparsec (10^-18 parsecs)

3.5 cm — width of film commonly used in motion pictures and still photography

4.27 cm — diameter of a golfball

7.32 cm — diameter of a baseball

8.5 cm × 5.4 cm — dimensions of a typical credit card

10 cm × 5 cm × 1 cm — dimensions of a typical hand-held device such as a mobile phone or a digital audio player (as of 2006)

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Orders of magnitude (length)