6 imperial pints in imperial gallons
Result
The conversion result is: 6 imperial pints is equivalent to 0.75 imperial gallons.[1]
Conversion formula
How to convert 6 imperial pints to imperial gallons?
We know (by definition) that: 1 imperialpint ≈ 0.125 imperialgallon.
We can set up a proportion to solve for the number of imperial gallons.
1 imperialpint / 6 imperialpint ≈ 0.125 imperialgallon / x imperialgallon
Now, we cross multiply to solve for our unknown x:
x imperialgallon ≈ (6 imperialpint / 1 imperialpint) * 0.125 imperialgallon → x imperialgallon ≈ 0.75 imperialgallon
Conclusion:
6 imperialpint ≈ 0.75 imperialgallon

Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial gallon is equal to 1.33333333333333 times 6 imperial pints.
It can also be expressed as: 6 imperial pints is equal to 1 / 1.33333333333333 imperial gallons.
Approximation
An approximate numerical result would be: six imperial pints is about zero imperial gallons, or alternatively, a imperial gallon is about one point three three times six imperial pints.
Footnotes
[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).
Results may contain small errors due to the use of floating point arithmetic.