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The basic SI unit is for length. Volume is a measure which is based on length-cubed and so it is a derived (not complex) unit.

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8y ago
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8y ago

Volume has an unit in the SI - cubic metre (or the submultiple litre).
This is not a base unit in SI just because can be easily derived.

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Q: Why is volume known as a complex unit instead of a SI unit?
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