How Many Imperial Gallons in a Cubic Inch?

Quick Answer
1 Cubic Inch = 0.004 Imperial Gallons

1 in³ = 0.004 imp gal

Formula

imp gal = in³ × 0.004

Conversion Table

Cubic Inches (in³)Imperial Gallons (imp gal)
1 in³0.004 imp gal
2 in³0.007 imp gal
5 in³0.018 imp gal
10 in³0.036 imp gal
20 in³0.072 imp gal
50 in³0.18 imp gal
100 in³0.36 imp gal
500 in³1.802 imp gal
1,000 in³3.605 imp gal

Worked Examples

Convert 5 in³ to imp gal:
5 in³ × 0.004 = 0.018 imp gal
Convert 10 in³ to imp gal:
10 in³ × 0.004 = 0.036 imp gal
Convert 50 in³ to imp gal:
50 in³ × 0.004 = 0.18 imp gal

FAQ

How many Imperial Gallons are in 1 Cubic Inch?
There are 0.004 Imperial Gallons in 1 Cubic Inch. Formula: imp gal = in³ × 0.004.
How to convert Cubic Inches to Imperial Gallons?
To convert Cubic Inches to Imperial Gallons, multiply the number of Cubic Inches by 0.004. For example, 10 in³ = 0.036 imp gal.
How many Imperial Gallons are in 100 Cubic Inches?
There are 0.36 Imperial Gallons in 100 Cubic Inches. Calculation: 100 × 0.004 = 0.36.