You will need 0.309 cubic yards (about 600 pounds) of gravel.
to be a smart alec none its a hole but the volume of he hole is 64 sqft
25feet
99 to 115 lbs
1.25 meters = 4feet 1.2inches(rounded)
79
The more gravel you have, the more it weighs.
How much gravel for 200 gallon tank
theres no dirt in a hole
Assuming the pond is a cuboid: volume = length x width x height = 12 x 4 x 4 = 192 cubic feet.
21 inches
1 square km of gravel
depend on the stone used for the gravel.