640 US customary teaspoons in imperial gallons
Conversion
640 US customary teaspoons is equivalent to 0.693895153857491 imperial gallons.[1]
Conversion formula
How to convert 640 US customary teaspoons to imperial gallons?
We know (by definition) that:
We can set up a proportion to solve for the number of imperial gallons.
Now, we cross multiply to solve for our unknown :
Conclusion:
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial gallon is equal to 1.44113991060583 times 640 US customary teaspoons.
It can also be expressed as: 640 US customary teaspoons is equal to imperial gallons.
Approximation
An approximate numerical result would be: six hundred and forty US customary teaspoons is about zero point six nine imperial gallons, or alternatively, a imperial gallon is about one point four three times six hundred and forty US customary teaspoons.
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.