686 US pints in imperial quarts
Result
The conversion result is: 686 US pints is equivalent to 285.607245327743 imperial quarts.[1]
Conversion formula
How to convert 686 US pints to imperial quarts?
We know (by definition) that: 1 uspint ≈ 0.416337092314494 imperialquart.
We can set up a proportion to solve for the number of imperial quarts.
1 uspint / 686 uspint ≈ 0.416337092314494 imperialquart / x imperialquart
Now, we cross multiply to solve for our unknown x:
x imperialquart ≈ (686 uspint / 1 uspint) * 0.416337092314494 imperialquart → x imperialquart ≈ 285.6072453277429 imperialquart
Conclusion:
686 uspint ≈ 285.6072453277429 imperialquart

Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial quart is equal to 0.00350131173616576 times 686 US pints.
It can also be expressed as: 686 US pints is equal to 1 / 0.00350131173616576 imperial quarts.
Approximation
An approximate numerical result would be: six hundred and eighty-six US pints is about two hundred and eighty-five point six one imperial quarts, or alternatively, a imperial quart is about zero times six hundred and eighty-six 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.