Pool Volume Calculator

Last updated: 12 Jun 2025 | Author: Brij | Review By: Irshad

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The "Pool Volume Calculator" is a handy tool designed to quickly estimate the amount of water your pool can hold. By simply entering the dimensions of your pool—whether it's round or rectangular.

Select pool type:

Total Area

Rectangle

Circle

Total pool area:

Depth of pool:

Result

Pool volume:

Our Pool Volume Calculator is designed to make these calculations easy, accurate, and accessible. Knowing the exact water volume is essential for proper chemical treatment, filtration, and maintenance of your pool.

1. Calculating Pool Volume in Cubic Feet

The foundation of measuring pool volume is calculating it in cubic feet. Start by finding the area of the pool, then multiply by the average depth.

General Formula for Pool Volume (in Cubic Feet):

$\text{Volume (cubic feet)} = \text{Area} \times \text{Depth}$

2. Calculating Pool Volume to Gallons

Once the volume in cubic feet is calculated, you can easily convert it to gallons. Since 1 cubic foot of water is equivalent to 7.48 gallons, multiply the volume in cubic feet by 7.48.

Formula for Pool Volume in Gallons:

$\text{Volume (gallons)} = \text{Volume (cubic feet)} \times 7.48$

Example Calculation: If your pool has an area of 100 square feet and an average depth of 4 feet:

First, calculate the cubic feet:

$100 \, \text{ft}^2 \times 4 \, \text{ft} = 400 \, \text{ft}^3$

Then, convert to gallons:

$400 \, \text{ft}^3 \times 7.48 = 2,992 \, \text{gallons}$

3. Calculating Pool Volume to Liters

For those using the metric system, you can convert cubic feet to liters by multiplying the volume in cubic feet by 28.317.

Formula for Pool Volume in Liters:

$\text{Volume (liters)} = \text{Volume (cubic feet)} \times 28.317$

Example Calculation: Using the example above, with a volume of 400 cubic feet:

$400 \, \text{ft}^3 \times 28.317 = 11{,}326.8 \, \text{liters}$

Pool Volume Formulas by Shape

Different pool shapes require specific formulas for accurate volume calculation. Here’s how to calculate the area and apply depth for the most common pool shapes: