815 US pints in imperial pints
Result
The conversion result is: 815 US pints is equivalent to 678.629460472626 imperial pints.[1]
Conversion formula
How to convert 815 US pints to imperial pints?
We know (by definition) that: 1 uspint ≈ 0.832674184628989 imperialpint.
We can set up a proportion to solve for the number of imperial pints.
1 uspint / 815 uspint ≈ 0.832674184628989 imperialpint / x imperialpint
Now, we cross multiply to solve for our unknown x:
x imperialpint ≈ (815 uspint / 1 uspint) * 0.832674184628989 imperialpint → x imperialpint ≈ 678.6294604726261 imperialpint
Conclusion:
815 uspint ≈ 678.6294604726261 imperialpint

Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial pint is equal to 0.0014735581908035 times 815 US pints.
It can also be expressed as: 815 US pints is equal to 1 / 0.0014735581908035 imperial pints.
Approximation
An approximate numerical result would be: eight hundred and fifteen US pints is about six hundred and seventy-eight point six two imperial pints, or alternatively, a imperial pint is about zero times eight hundred and fifteen US 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.