Home Back

Calculate Gallons in Round Pool

Round Pool Volume Formula:

\[ V = \pi \times R^2 \times D \times 7.48 \]

feet
feet

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is the Round Pool Volume Formula?

The round pool volume formula calculates the total gallons of water a circular pool can hold based on its radius and average depth. This is essential for proper chemical treatment and maintenance.

2. How Does the Calculator Work?

The calculator uses the round pool volume formula:

\[ V = \pi \times R^2 \times D \times 7.48 \]

Where:

Explanation: The formula first calculates the area of the circular pool (πR²), then multiplies by depth to get cubic feet, and finally converts to gallons.

3. Importance of Pool Volume Calculation

Details: Knowing your pool's volume is crucial for proper chemical dosing, filtration system sizing, and water replacement calculations.

4. Using the Calculator

Tips: Measure the pool's diameter and divide by 2 to get radius. For depth, average the shallow and deep end measurements if applicable. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What if my pool isn't perfectly round?
A: This formula works best for true circular pools. For oval pools, use a different formula that accounts for both lengths.

Q2: How do I measure average depth?
A: Measure the shallowest and deepest points, add them together, and divide by 2. For uniform depth pools, just use that measurement.

Q3: Why is 7.48 used in the formula?
A: There are 7.48 gallons in one cubic foot of water, which converts the volume from cubic feet to gallons.

Q4: How accurate is this calculation?
A: It's very accurate for perfect cylinders. Real pools may vary slightly due to shape irregularities or sloping bottoms.

Q5: Can I use this for pools measured in meters?
A: No, this formula is for feet. For meters, you would need to use a different conversion factor (1000 liters per cubic meter).

Round Pool Volume Calculator© - All Rights Reserved 2025