Conversion formula

The conversion factor from pints to gallons is 0.125, which means that 1 pint is equal to 0.125 gallons:

1 pt = 0.125 gal

To convert 640.5 pints into gallons we have to multiply 640.5 by the conversion factor in order to get the volume amount from pints to gallons. We can also form a simple proportion to calculate the result:

1 pt → 0.125 gal

640.5 pt → V_(gal)

Solve the above proportion to obtain the volume V in gallons:

V_(gal) = 640.5 pt × 0.125 gal

V_(gal) = 80.0625 gal

The final result is:

640.5 pt → 80.0625 gal

We conclude that 640.5 pints is equivalent to 80.0625 gallons:

640.5 pints = 80.0625 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.012490241998439 × 640.5 pints.

Another way is saying that 640.5 pints is equal to 1 ÷ 0.012490241998439 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty point five pints is approximately eighty point zero six three gallons:

640.5 pt ≅ 80.063 gal

An alternative is also that one gallon is approximately zero point zero one two times six hundred forty point five pints.

Conversion table

pints to gallons chart

For quick reference purposes, below is the conversion table you can use to convert from pints to gallons