A lot. ;)
The answer will depend on pennies from which country!
50
12
Assuming that the 14 inch box is square, you could fit a circle inside with a 14 inch diameter.
91 with .79 cubic inches to spare.
729 of them!
1,728
1,000-3,000 pennies
An Estimated 20,000 pennies=$200.00
50,000
60 - 70
Approximately 7,500 pennies could fit in a three gallon jug.