Gallons (US – Liquid) to Cubic inches converter

To convert gallons (US – Liquid) to cubic inches, enter the value in the first field. The result in cubic inches is calculated automatically using the exact conversion factor.

1 US gal = 231 in³
1 in³ ≈ 0.004329004329 US gal

Formula: in³ = US gal × 231
US gal ≈ in³ × 0.004329004329

Definitions: 1 US gal = 231 in³; 1 in³ = 16387.064 mm³

The US liquid gallon is the everyday gallon in the United States, used for fuel, milk, paint and most liquids sold by volume. It derives from the old English wine gallon, which was fixed at 231 cubic inches.

The cubic inch (in³) is the volume of a cube one inch on each side. It is still used in the United States for engine displacement, especially for classic American cars and motorcycles, and in machining and hydraulic pump specifications.

See the conversion table with commonly used values, handy for quick reference or study.