Gas Cylinder Volume Calculator (gal, ft³)

By

Calculate the internal volume of a gas cylinder in gallons and cubic feet.

Need help with the calculation?
Gas Cylinder (Capsule) Calculator (Imperial)
Gas Cylinder (Capsule)

Vertical cylinder with hemispherical top and bottom

Dimensions
ft
in
ft
in

Total height = cylinder + diameter (2 hemispheres) = 3' 7"

Water Level
ft
in
1' 9 1/2"
Results
Water Volume
0 US gal
Total Capacity
0 US gal
Filled
0 %
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
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How to Calculate Gas Cylinder Volume in Imperial Units

Determine the internal volume of gas cylinders in gallons and cubic feet. Enter outer diameter, wall thickness, and height in inches.

Example: a standard 20 lb propane tank is about 12 inches diameter and 18 inches tall, holding approximately 4.7 gallons. A large industrial cylinder 9 inches across and 55 inches tall holds about 8.8 gallons.

Supports flat, hemispherical, and dished end types for accurate internal volume calculations.

Misha Noyr, M.Eng.

Misha Noyr, M.Eng.

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