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Decimetre

The decimetre (or decimeter in American English; symbol: dm), is a unit of length in the International System of Units, equal to one tenth of a metre, ten centimetres, one hundred millimetres, and 3.937 inches.[1]

Decimetre

dm

   0.1 m

   0.32808 ft
 3.9370 in

The common non-SI metric unit of volume, the litre, is defined as one cubic decimetre, although, from 1901 to 1964, there was a slight difference between the two due to the litre being defined using the kilogram rather than the metre.


Markings of a ship's draft are shown in decimeters in most of the world.

Metric prefix

Deci-

Orders of magnitude (length) § 1 decimetre

for comparison with other units of length.

Conversion of units