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Unit system metric
Unit of length
Symbol dm 
Unit conversions
1 dm in ...... is equal to ...
   SI units    0.1 m
   imperial/US units    0.32808 ft
 3.9370 in

The decimetre (SI symbol dm) is a unit of length in the metric system, equal to one tenth of a metre (the International System of Units base unit of length), ten centimetres or 1/0.254 (approximately 3.93700787) inches.

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

See also[edit]