It depends on a number of factors but roughly speaking beer weighs a fraction more than water, in metric units about 1050Kg per cubic metre.
To convert that into pounds per cubic feet divide by 16.02
The next stage in the calculation depends on what country you are in - for example if you are using UK Gallons you would divide your answer by 6.23 and arrive at a figure of approximately 10 1/2 LB per UK gallon.
I hope that this helps!
SOURCES
simetric.co.uk
metricconversions.org
(posted by 37420)
how much does a gallon of concrete weigh
64 ounces
no i didn't get the answer
128 one ounce servings in a gallon.
A gallon of 25% hydrofluorosilicic acid will weigh approximately 13.6 pounds.
1 US gallon would weigh approx 39.8 newtons.
1 gallon = 4 quarts 1 quart = 0.25 gallon
8 pounds
834
no i didn't get the answer
7 pounds
6.3 pounds.