640 US dry pints in imperial gallons
Result
The conversion result is: 640 US dry pints is equivalent to 77.515117753674 imperial gallons.[1]
Conversion formula
How to convert 640 US dry pints to imperial gallons?
We know (by definition) that: 1 drypint ≈ 0.121117371490116 imperialgallon.
We can set up a proportion to solve for the number of imperial gallons.
1 drypint / 640 drypint ≈ 0.121117371490116 imperialgallon / x imperialgallon
Now, we cross multiply to solve for our unknown x:
x imperialgallon ≈ (640 drypint / 1 drypint) * 0.121117371490116 imperialgallon → x imperialgallon ≈ 77.51511775367425 imperialgallon
Conclusion:
640 drypint ≈ 77.51511775367425 imperialgallon
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial gallon is equal to 0.0129007092936088 times 640 US dry pints.
It can also be expressed as: 640 US dry pints is equal to 1 / 0.0129007092936088 imperial gallons.
Approximation
An approximate numerical result would be: six hundred and forty US dry pints is about seventy-seven point five one imperial gallons, or alternatively, a imperial gallon is about zero point zero one times six hundred and forty US dry 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.