about 71 cubic metres of gravel i think
218.75 cubic feet or 8.1 cubic yards
alot! 1,234,345.
23 cu. ft., or about 1 cu. yd.
Gravel is bought in cubic quantities, or by weight. You ask "to fill" but you only give a square measure. The volume of gravel required wil depends on the depth you wish the gravel to be. To fill 81 square metres to a depth of 5 cm would require 4.05 cubic metres of material.
about 71 cubic metres of gravel i think
Volume required = pi*r2*h = pi*32*16 = 452.4 cubic feet
218.75 cubic feet or 8.1 cubic yards
32
23 yards
alot! 1,234,345.
None. You have only given an area and no depth. Without a depth, the volume is zero and thus the hole does not exist and no gravel will be needed. If you meant a round hole 12 ft by 14 ft it is still unclear as to the dimension of the hole: firstly which is the depth (the 14 ft is the most likely), but when speaking of a round hole would you mean the perimeter, the radius or diameter for the given measurement? They all lead to different volumes and hence difference amounts of gravel needed to fill the hole. Ans 3 - 12 x 14 is NOT round it is rectangular
5.19
Depends on the depth of the water. If you go to four feet deep the total would be about 13,594 gallons.
23 cu. ft., or about 1 cu. yd.
Roughly 81,120 gallons
A quick visual of this volume would be an Olympic size pool filled approximately 2 feet deep with water.Dimensions are listed below:50 meters = 164.041995 feet (a)25 meters = 82.0209975 feet (b)2 feet deep (c)Approx = 250,000U.S. gallons