Fifth is volume unit. Definition of 1 fifth ≡ 1⁄5 US gal. Fifth part of US gallon = 0.003785411784 / 5 = 757.0823568×10−6 m³. Compared to cubic metre, fifth is smaller unit.
• 1 fifth = (exactly) `7.570823568*10^-04` [m³]
• 1 [m³] = (exactly) `1/(7.570823568*10^-04)` fifth = 1320.8602617907 fifth
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Multiply convert of fifth to common volume units:
fifthVolume units sort by name in ABC order
See also: US gallon (fluid). http://conversion.org/volume/g...