Calculate the volume of a torus (donut shape) in gallons and cubic feet.
Toroidal Vessel Volume
Torus (ring-shaped tank)
Torus Dimensions
ft
in
ft
in
Outer dia. = 4' 7", inner dia. = 2' 3 1/2", height = 1' 3 3/4".
Water Level
ft
in
Results
Water Volume
0 US gal
Total Capacity
0 US gal
Filled
0 %
From Bottom
0 in
To Top
0 in
Water Weight
0 lb
Remaining
0 US gal
Water Volume
0 yd³
Total Capacity
0 yd³
Gas Mass (Liquid Phase)
lb/gal
Gas Mass
0 lb
How to Calculate Torus Volume in Imperial Units
Determine torus volume using major radius R and tube radius r in inches or feet. Formula: V = 2π²Rr².
Example: a toroidal tank with 3-foot major radius and 1-foot tube radius holds about 444 gallons. A ring with 18-inch major radius and 4-inch tube holds roughly 7.7 gallons.
Applicable to toroidal fuel tanks, inflatable rings, and ring-shaped piping systems.
