21 imperial gallons in US dry barrels

Result

The conversion result is: 21 imperial gallons is equivalent to 0.825653073784588 US dry barrels.[1]

Conversion formula
How to convert 21 imperial gallons to US dry barrels?

We know (by definition) that: 1 imperialgallon ≈ 0.0393168130373613 drybarrel.

We can set up a proportion to solve for the number of US dry barrels.

1 imperialgallon / 21 imperialgallon ≈ 0.0393168130373613 drybarrel / x drybarrel

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

x drybarrel ≈ (21 imperialgallon / 1 imperialgallon) * 0.0393168130373613 drybarrel → x drybarrel ≈ 0.8256530737845873 drybarrel

Conclusion:

21 imperialgallon ≈ 0.8256530737845873 drybarrel

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US dry barrel is equal to 1.21116245036944 times 21 imperial gallons.

It can also be expressed as: 21 imperial gallons is equal to 1 / 1.21116245036944 US dry barrels.

Approximation

An approximate numerical result would be: twenty-one imperial gallons is about zero point eight three US dry barrels, or alternatively, a US dry barrel is about one point two zero times twenty-one imperial 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.