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Convert Imperial Gallons to Cubic Inches

1 imperial gallon = 277.419433 cubic inches. Type any value below to convert in either direction — the calculation happens in your browser.

Imperial Gallons to Cubic Inches formula

Multiply the number of imperial gallons by 277.419433 to get cubic inches.

cubic inches = imperial gallons × 277.419433

To go the other way: divide the number of cubic inches by 277.419433, or multiply by 0.00360465.

imperial gallons = cubic inches ÷ 277.419433

Imperial Gallons to Cubic Inches conversion table

Imperial GallonsCubic Inches
1 imp gal277.419433 in³
2 imp gal554.838866 in³
3 imp gal832.258298 in³
4 imp gal1,109.678 in³
5 imp gal1,387.097 in³
6 imp gal1,664.517 in³
7 imp gal1,941.936 in³
8 imp gal2,219.355 in³
9 imp gal2,496.775 in³
10 imp gal2,774.194 in³
15 imp gal4,161.291 in³
20 imp gal5,548.389 in³
25 imp gal6,935.486 in³
30 imp gal8,322.583 in³
40 imp gal11,096.78 in³
50 imp gal13,870.97 in³
75 imp gal20,806.46 in³
100 imp gal27,741.94 in³
250 imp gal69,354.86 in³
500 imp gal138,709.7 in³
1,000 imp gal277,419.4 in³

Cubic Inches to Imperial Gallons conversion table

Cubic InchesImperial Gallons
1 in³0.00360465 imp gal
2 in³0.0072093 imp gal
3 in³0.01081395 imp gal
4 in³0.0144186 imp gal
5 in³0.01802325 imp gal
6 in³0.0216279 imp gal
7 in³0.02523255 imp gal
8 in³0.0288372 imp gal
9 in³0.03244185 imp gal
10 in³0.0360465 imp gal

About the imperial gallon

An imperial gallon is exactly 4.54609 litres — about 20% larger than a US gallon.

About the cubic inch

A cubic inch is about 16.39 millilitres, traditionally used for American engine displacement.

Frequently asked questions

How many cubic inches are in a imperial gallon?

There are 277.419433 cubic inches in one imperial gallon.

How many imperial gallons are in a cubic inch?

There are 0.00360465 imperial gallons in one cubic inch.

Is this conversion exact?

The ratio between the imperial gallon and the cubic inch is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.

What is 10 imperial gallons in cubic inches?

10 imperial gallons equals 2,774.194 cubic inches.

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