Because one penny weighs 0.006250lb or .002 Kilograms and the accuracy of the household scale is +/ 100th, then. If you are using Kilograms, then. Number of pennies +/ 100 = (Weight
http://wiki.answers.com/Q/How_many_pennies_in_a_5_...

You could fit approx. 30,200 Pennies in a 5 gallon jug. That's $302, but it would depend on how you packed them! report this answer. Updated on Thursday, February 02 2012 at 06:23AM
http://www.kgbanswers.com/howmanypennieswillfi...

The volume of a 5 gallon jug is 3785, hence one could fit around 30...
http://www.chacha.com/question/howmanypennieswo...

30,365 pennys. volume=pi *r^2* h. r=5 inch and h = .123 cm (recall that 1 inch in 2.54 cm) volume of penny = 0.6233 cm^3. 1 US gallon = 3 785.4118 cm^3. and 0.6233 goes into that
http://answers.yahoo.com/question/index?qid=200801...
