1 US drum of oil | 55 gallons | 7.352 ft^3 (cubic feet) | 1.31 bbl oil (barrels of oil) | 208.2 L (liters)

1 gal | 0.01818 US drums of oil 1 ft^3 | 0.136 US drums of oil 1 bbl oil | 0.7636 US drums of oil 1 L | 0.004803 US drums of oil

volume

(not in a named unit system)

[length]^3

Radius r of a sphere from V = 4πr^3/3: | 1.206 feet | 14.48 inches | 36.77 cm (centimeters)

Edge length a of a cube from V = a^3: | 1.945 feet | 23.33 inches | 59.27 cm (centimeters)

Mass m of water from m = ρ_(H_2O)V: | 459 lb (pounds) | 208 kg (kilograms) | (assuming conventional water density ≈ 1000 kg/m^3)

Molecule number N of water from N = ρ_(H_2O)V/m_(H_2O): | 6.96×10^27 molecules | (assuming conventional water density ≈ 1000 kg/m^3) | (assuming molecular mass of water ≈ 18.02 u)

Amount of an ideal gas from PV = nRT at STP: | 9.2 mol (moles)

≈ ( 0.1 ≈ 1/10 ) × volume of paint needed to cover the outside surface of the White House ( ≈ 600 gal )

≈ 1.4 × volume of a typical bathtub ( ≈ 40 gal )

≈ 1.9 × volume of a typical washing machine drum ( 3.5 to 4.5 ft^3 )