How to convert 621 US quarts to US dry barrels?
We know (by definition) that:
We can set up a proportion to solve for the number of US dry barrels.
Now, we cross multiply to solve for our unknown :
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US dry barrel is equal to 0.196750109793588 times 621 US quarts.
It can also be expressed as: 621 US quarts is equal to US dry barrels.
An approximate numerical result would be: six hundred and twenty-one US quarts is about five point zero eight US dry barrels, or alternatively, a US dry barrel is about zero point two zero times six hundred and twenty-one US quarts.
 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.