Calculate the volume of a hemisphere in gallons and cubic feet from its radius or diameter.
Hemisphere Water Volume
Bowl, dome, hemispherical vessel
Dimensions
ft
in
Orientation
Water Level
ft
in
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
How to Calculate Hemisphere Volume in Imperial Units
Determine the volume of a hemisphere using radius or diameter in inches or feet. Formula: V = (2/3)πr³.
Example: a hemispherical tank 6 feet in diameter holds about 56.5 ft³ (423 gallons). A small half-sphere bowl 10 inches across holds approximately 1.1 gallons.
Applicable to dome-shaped tanks, hemispherical vessels, and architectural domes.
