Measurement system: US customary → US/Imperial length-derived

Convert US liquid gallon (US gal) → cubic foot (ft³)

1 US gal equals 0.133680555556 ft³. The name of a customary unit matters: US liquid and Imperial units are not interchangeable.

Why the distinction matters

US liquid gallon and cubic foot belong to measurement conventions that may look familiar but are not always equivalent across countries. Mendeleev.com therefore keeps the system name next to the abbreviation and calculates from defined conversion factors rather than rounded kitchen rules.

Example

1 US gal = 0.133680555556 ft³ · 10 US gal = 1.33680555556 ft³.

0.133680555556 ft³

Sources