The decimetre (ordecimeterinAmerican 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 | |
|---|---|
A standard CD is 120 millimetres (1.2 decimetres) in diameter.
| |
| General information | |
| Unit system | SI |
| Unit of | length |
| Symbol | dm |
| Conversions | |
| 1 dm in ... | ... is equal to ... |
| SI base units | 0.1 m |
| imperial/US units | 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.
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