Yards is a measurement of distance - Tons is a measurement of weight - the two are not interchangeable.
22.5
15 gallons = 0.07427 cubic yards (rounded)
1.851852 cubic yards
15'x37'x4" requires 6.85 cubic yards.
The formula I use is 15 tons = about 12 yards.
This area requires 3.7 cubic yards.
12*15*.33333= 60 cubic feet. 60 cubic feet/27 cubic feet per cubic yard = 2.222 cubic yards
14.8 cubic yards will work but round to 15 to be sure.
You would need approximately 2.5 cubic yards of gravel to cover a 12' by 15' area at a depth of 2 inches.
Multiply (acre-feet) by (1,613 and 1/3) to get (cubic yards). 3 acre-feet = 4,840 cubic yards. Multiply (cubic yards) by (0.00062) to get (acre-feet). 24,200 cubic yards = 15 acre-feet
A cube with side lengths of 15 yards has a volume of 3,375 cubic yards.
If you have to dig a hole 270 feet wide by 470 feet long to a depth of 15 feet, you've got a lot of digging to do. The volume is a simple product, so 270 x 470 x 15 = 1,903,500 cubic feet. Since there are 27 cubic feet to the cubic yard, you've got 70,500 cubic yards of dirt to move! If your trucks carry 12 yards, that's 5,875 loads. That's a lotta fill!,