🛢️ Tank Volume Calculator
Calculate tank volume in gallons and liters
How Tank Volume Calculation Works
Formula
Rectangular: L×W×H | Cylinder: π×r²×h | Sphere: (4/3)×π×r³
- 1Select the tank shape: rectangular, cylindrical, or spherical.
- 2Enter the dimensions of the tank in feet.
- 3The calculator computes volume in cubic feet using the appropriate formula.
- 4Cubic feet are converted to US gallons (multiply by 7.48052).
- 5Volume is also shown in liters (gallons × 3.78541).
About Tank Volume Calculator
Calculate the volume of rectangular, cylindrical, and spherical tanks. Get results in gallons, liters, and cubic feet for any tank shape.
Frequently Asked Questions
How many gallons in a cubic foot?
One cubic foot equals 7.48052 US gallons. So a tank measuring 4×2×3 feet holds 24 cubic feet or about 179.5 gallons.
How do I measure a horizontal cylindrical tank?
Measure the diameter of the circular end and the length from end to end. For horizontal tanks, the diameter is the height measurement, and length runs along the ground.
What is the most efficient tank shape?
Spherical tanks hold the most volume for the least surface area, making them efficient for pressure vessels. For practical storage, cylindrical tanks offer a good balance of efficiency and ease of manufacture.