0.6 cubic feet in one 80 lb bag. with there being 27 cubic feet in one cubic yard: 0.02 cubic yards per bag, in other words, it would take 45 - 80lb bags to yeild 1 cubic yard of concrete
You would need 54 bags of 0.5 cubic feet pea gravel to equal 1 cubic yard.
0.5 is one-half, it takes 2 of these to make one cubic foot.
It depends on the size of the bags
11 bags
The number of bags in a cubic yard depends on the size of the bags being used. Typically, a cubic yard can fit around 13.5 regular-sized garbage bags with a capacity of 33-35 gallons. However, this may vary with larger or smaller bags.
You need10.8/(the number of cubic feet of sand in each bag) bags.
about 60 60lb bags
A cubic yard is 3x3x3= 27 cubic feet so you would need 27/.5 = 54 bags
Twenty-one .75 cubic foot bags equal 16 cubic feet.
26 bags
7 cement bags per 1 cubic meter of concrete......