VOLUME CONVERSION
Imperial gallon to Cubic inch.
Convert imperial gallon (gal (UK)) to cubic inch (in³), with the math explained.
1 gal (UK) = 277.4194328 in³
US and UK gallons, pints, and fluid ounces are different sizes. A metric cup is 250 mL; a US customary cup is 236.5882365 mL.
THE MATH, MADE SIMPLE
How to convert imperial gallon to cubic inch
Multiply your imperial gallon value by 277.419432792 to get the equivalent in cubic inch. Both units are normalized through the liter.
in³ = gal (UK) × 277.419432810 gal (UK) = 2,774.19432792 in³
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.US and UK gallons, pints, and fluid ounces are different sizes. A metric cup is 250 mL; a US customary cup is 236.5882365 mL.
QUICK REFERENCE
gal (UK) to in³ conversion table
| Imperial gallon (gal (UK)) | Cubic inch (in³) |
|---|---|
| 1 gal (UK) | 277.419432792 in³ |
| 2 gal (UK) | 554.838865583 in³ |
| 5 gal (UK) | 1,387.09716396 in³ |
| 10 gal (UK) | 2,774.19432792 in³ |
| 20 gal (UK) | 5,548.38865583 in³ |
| 50 gal (UK) | 13,870.9716396 in³ |
| 100 gal (UK) | 27,741.9432792 in³ |
| 500 gal (UK) | 138,709.716396 in³ |
| 1,000 gal (UK) | 277,419.432792 in³ |
About the imperial gallon
The imperial gallon (gal (UK)) is a unit of volume. One imperial gallon equals 4.54609 liter (base unit) in this calculator.
All imperial gallon conversionsAbout the cubic inch
The cubic inch (in³) is a unit of volume. One cubic inch equals 0.016387064 liter (base unit) in this calculator.
All cubic inch conversionsCommon questions
What is 1 gal (UK) in in³?
One imperial gallon equals 277.419432792 in³. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
BROWSE BY UNIT