US gallon (gal US)
The US gallon is used for fuel, beverages, household liquids, and American recipes.
History: the US gallon comes from older English trade measures, but its modern value differs from the imperial gallon.
Quickly convert US gallons to cubic inches without lookup tables or manual math.
This page is focused on converting US gallons to cubic inches. Type a number into the first field and the result appears immediately in the second field.
Example: 1 gal US = 231 in³. Conversion formula: result = value × 0.003785411784 / 1.6387064E-5.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
The US gallon is used for fuel, beverages, household liquids, and American recipes.
History: the US gallon comes from older English trade measures, but its modern value differs from the imperial gallon.
The cubic inch is used for small volumes, mechanics, engines, and imperial technical descriptions.
History: the cubic inch became a technical small-volume unit, especially in mechanics and engine descriptions.
Enter a value in the US gallon field. The converter applies the formula "result = value × 0.003785411784 / 1.6387064E-5" and immediately shows the result in cubic inches.
1 gal US = 231 in³.
Yes. Use the swap button or choose the reverse pair from the full conversion list.