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

Convert US liquid gallon (US gal) → cubic inch (in³)

1 US gal equals 231 in³. The name of a customary unit matters: US liquid and Imperial units are not interchangeable.

Why the distinction matters

US liquid gallon and cubic inch 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 = 231 in³ · 10 US gal = 2 310 in³.

US liquid gallon

231 in³

How to use this conversion

The conversion keeps the physical quantity unchanged; only the unit used to express it changes. Apply the relation below, keep the unit with the number, and round only at the end.

1 US gal = 231 in³ · 10 US gal = 2 310 in³.