CalHub

Tank Volume Calculator

Calculate the volume of a vertical cylindrical tank in gallons and liters.

Volume 564.02
Volume 2,135.04
Volume 75.398

Formula: volume = π × (diameter/2)² × height

Step-by-step with your numbers:
1. Values used:
2. Diameter = 4
3. Height = 6
4.
5. Volume = 564.02
6. Volume = 2,135.04
7. Volume = 75.398
Did we solve your problem today?

Find the capacity of a vertical cylindrical tank — for water storage, fuel, brewing or chemicals.

The math behind it

A cylinder's volume = π × radius² × height.

Multiply cubic feet by 7.48052 for US gallons, or 28.317 for liters.

Worked example

4 ft diameter, 6 ft tall → π × 2² × 6 = 75.4 ft³ ≈ 564 gallons.

FAQ

What about a horizontal tank?

Horizontal cylinders need a more complex partial-fill formula; this tool assumes a full vertical cylinder.

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