How to convert 870 imperial gallons to US gallons?
We know (by definition) that:
We can set up a proportion to solve for the number of US gallons.
Now, we cross multiply to solve for our unknown :
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US gallon is equal to 0.000957096763941366 times 870 imperial gallons.
It can also be expressed as: 870 imperial gallons is equal to US gallons.
An approximate numerical result would be: eight hundred and seventy imperial gallons is about one thousand and forty-four point eight two US gallons, or alternatively, a US gallon is about zero times eight hundred and seventy imperial gallons.
 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.