FreeToolbox24

Cubic inches to Gallons (US) Converter

Quick answer: 1 in³ = 0.0043290043 gal. To convert cubic inches to gallons (US), divide by 231.

in³
gal

Gallons (US) = Cubic inches × 0.0043290043

Swap: Gallons (US) to Cubic inches

Cubic inches to Gallons (US) conversion table

Cubic inchesGallons (US)
1 in³0.0043290043 gal
2 in³0.0086580087 gal
5 in³0.0216450216 gal
10 in³0.0432900433 gal
25 in³0.1082251082 gal
50 in³0.2164502165 gal
100 in³0.4329004329 gal

How to convert cubic inches to gallons (US)

Gallons (US) = Cubic inches × 0.0043290043. For example, 2 in³ = 0.0086580087 gal. Type a value in either box above: the other one updates instantly, both ways.

What is a cubic inch?

A cubic inch (in³) is the volume of a 1 in cube, about 16.39 mL; engine sizes are often given in it.

What is a gallon?

A US gallon (gal) is 128 US fluid ounces, exactly 3.785411784 liters.

How do I convert cubic inches to gallons (US)?

Use the formula Gallons (US) = Cubic inches × 0.0043290043. Type a value in the cubic inches box and the result appears instantly.

How many gallons (US) are in 1 cubic inch?

1 in³ = 0.0043290043 gal.

Is this converter free and private?

Yes. It is free, needs no sign-up, and the calculation runs in your browser: nothing is sent to a server.

Which cups, pints and gallons does this use?

US customary units: 1 cup = 236.588 mL, 1 US gallon = 3.785 L and 1 US fluid ounce = 29.574 mL. The imperial (UK) gallon is larger, 4.546 L, and has its own converter.