Sphere Volume Calculator (gal, ft³)

By

Calculate the volume of a sphere in gallons and cubic feet from its radius or diameter.

Need help with the calculation?
Sphere Water Volume Calculator (Imperial)
Sphere Water Volume

Spherical tank calculator

Dimensions
ft
in
Water Level
ft
in
1' 7 11/16"
Results
Water Volume
0 US gal
Total Capacity
0 US gal
Filled
0 %
Water Surface Diameter
0 in
Water Weight
0 lb
Remaining
0 US gal
Water Volume
0 yd³
Total Capacity
0 yd³
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How to Calculate Sphere Volume in Imperial Units

Determine sphere volume using radius or diameter in inches or feet. Formula: V = (4/3)πr³.

Example: a spherical tank 6 feet in diameter holds about 113 ft³ (846 gallons). A 12-inch diameter ball has a volume of 0.52 ft³ (3.9 gallons).

Useful for spherical storage tanks, exercise balls, globes, and round vessels.

Misha Noyr, M.Eng.

Misha Noyr, M.Eng.

Civil Engineer · 15+ yrs · structural design, geotechnics. Full bio ↓