| 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 | 3.9370 in |
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.
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.
See also
- Metric prefix
- Deci-
- Orders of magnitude (length) ยง 1 decimetre
- Conversion of units, for comparison with other units of length.
References
- "decimeter - Dictionary Definition". Vocabulary.com. Retrieved 2021-01-03.
| Metric units of length (by order of magnitude) | |
|---|---|
| From smallest to largest (left to right). Commonly used units shown in bold italics. | |
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