Unit system metric Symbol dm imperial/US units 0.32808 ft 3.9370 in | 1 dm in ... ... is equal to ... | |
SI units 6999100000000000000♠0.1 m | ||
The decimetre (British English) or decimeter (American English); 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 c is pronounced /s/, unlike in decametre. 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).
References
Decimetre Wikipedia(Text) CC BY-SA