Tank Capacity Calculator Gallons

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 Capacity (gallons):

Definition: This calculator estimates the capacity of a tank in gallons based on its dimensions and shape (rectangular or cylindrical).

Purpose: It helps determine how much liquid a tank can hold, useful for water storage, aquariums, fuel tanks, and industrial applications.

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:

Details: Accurate capacity calculation ensures proper system design, prevents overfilling, and helps with inventory management of stored liquids.

Tips:

Q1: Why divide by 231?
A: 231 cubic inches equals 1 US liquid gallon, the standard conversion factor.

Q2: Can I use feet instead of inches?
A: Yes, but multiply your foot measurements by 12 first (1 foot = 12 inches).

Q3: Does this account for tank thickness?
A: No, this calculates internal capacity. For external dimensions, subtract wall thickness.

Q4: How accurate is this for irregular shapes?
A: Not accurate. Use our Irregular Tank Calculator for complex shapes.

Q5: What about metric units?
A: Use our Liters Capacity Calculator for metric measurements.