21 US gallons in imperial quarts

Result

The conversion result is: 21 US gallons is equivalent to 69.9446315088351 imperial quarts.[1]

Conversion formula
How to convert 21 US gallons to imperial quarts?

We know (by definition) that: 1 usgallon ≈ 3.33069673851596 imperialquart.

We can set up a proportion to solve for the number of imperial quarts.

1 usgallon / 21 usgallon ≈ 3.33069673851596 imperialquart / x imperialquart

Now, we cross multiply to solve for our unknown x:

x imperialquart ≈ (21 usgallon / 1 usgallon) * 3.33069673851596 imperialquart → x imperialquart ≈ 69.94463150883516 imperialquart

Conclusion:

21 usgallon ≈ 69.94463150883516 imperialquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial quart is equal to 0.0142970229226768 times 21 US gallons.

It can also be expressed as: 21 US gallons is equal to 1 / 0.0142970229226768 imperial quarts.

Approximation

An approximate numerical result would be: twenty-one US gallons is about sixty-nine point nine three imperial quarts, or alternatively, a imperial quart is about zero point zero one times twenty-one US gallons.

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.