Decimetre

{{short description|Unit of length 1/10 of a metre}}

{{EngvarB|date=November 2023}}

{{Infobox unit

| image = Cd 3d.png

| caption = A standard CD is {{convert|120|mm|dm|abbr=off}} in diameter.

| symbol = dm

| standard = SI

| quantity = length

| units1 = SI base units

| inunits1 = {{val|0.1|ul=m}}

| units2 = imperial/US units

| inunits2 = {{convert|1|dm|in|disp=out|comma=gaps|lk=on|sigfig=5}}

}}

{{Wiktionary|decimeter}}

The decimetre (or {{lang|en-us|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.{{Cite web|title=decimeter - Dictionary Definition|url=https://www.vocabulary.com/dictionary/decimeter|access-date=2021-01-03|website=Vocabulary.com}}

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.