Tank Volume Gallons Calculator

Tank Volume Formulas:

\[ V_{gal} = \frac{L \times W \times H}{231} \text{ (rectangular)} \] \[ V_{gal} = \frac{\pi \times r^2 \times h}{231} \text{ (cylindrical)} \]

Tank Shape:

Length:

inches

Width:

inches

Height:

inches

Tank Volume (gallons):

Definition: This calculator estimates the volume of liquid a tank can hold in gallons based on its dimensions.

Purpose: It helps determine tank capacity for storage, industrial applications, or aquarium setups.

The calculator uses different formulas based on tank shape:

\[ V_{gal} = \frac{L \times W \times H}{231} \text{ (rectangular)} \] \[ V_{gal} = \frac{\pi \times r^2 \times h}{231} \text{ (cylindrical)} \]

Where:

Explanation: The 231 divisor converts cubic inches to gallons (1 gallon = 231 cubic inches).

Details: Accurate volume calculation ensures proper system design, chemical dosing, and storage capacity planning.

Tips: Select tank shape, enter dimensions in inches, and click Calculate. All values must be > 0.

Q1: Why divide by 231?
A: There are 231 cubic inches in one US gallon, which is the standard conversion factor.

Q2: Can I use feet instead of inches?
A: Yes, but multiply feet by 12 to convert to inches before calculation.

Q3: What about irregular tank shapes?
A: This calculator handles only standard shapes. For complex shapes, use specialized tools.

Q4: Does this account for tank thickness?
A: No, use internal dimensions for accurate liquid capacity.

Q5: How precise are the results?
A: Results are mathematically precise but don't account for internal fixtures or displacement.