Short answer: About 2.92 cubic feet
(You'd more commonly refer to it as an 80 liter bag)
Long answer...
Most are 36" long and 21" when spread out flat. We need to turn that into a three dimensional object. The base of these duffel bags is square but when filled the bag forms a sausage shape, so we're going to use a cylinder for our math. Since this is a flattened cylinder, that 21" is actually half the circumference of 42"
Radius = Circumference / (2 x pi)
Radius = 42" / (2 x pi)
Radius = 6.68"
Volume of cylinder = height x pi x radius^2
Volume = 36" x pi x 6.68^2
Volume = 5053 in^3
1 ft^3 = 12" x 12" x 12" = 1728 in^3
5053 in^3 / 1728 in^3/ft^3 = 2.92 ft^3
2727 cubic feet
0.52 cubic yards = 14.04 cubic feet.
How many feet in a yard? A: 3How many cubic feet in a cubic yard? A: 3 * 3 * 3 = 27235 / 27 = 8.7
1.2 (cubic feet) = 2073.6 cubic inches
7,062.93 cubic feet.
53.33 cubic feet.
1.636254 cubic feet
35.315 cubic feet.
176.57 cubic feet.
3.88461 cubic feet.
1695.104 cubic feet.
There are 27 cubic feet in one cubic yard.