The unit "metred" is a common misspelling for metres.
Full name: metre
Plural form: metres
Symbol: m
Alternate spelling: meters
Category type: length
Scale factor: 1
The SI base unit for length is the metre.
1 metre is equal to 1 metred.
Valid units must be of the length type.
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The metre, symbol: m, is the basic unit of distance (or of "length", in the parlance of the physical sciences) in the International System of Units. The internationally-accepted spelling of the unit in English is "metre", although the American English spelling meter is a common variant. However, both American and non-American forms of English agree that the spelling "meter" should be used as a suffix in the names of measuring devices such as chronometers and micrometers.
