A 24 ft round pool holds approximately 13,500-14,700 gallons of water.
A 24-foot round pool with an average depth of 4-5 feet holds 13,500-14,700 gallons of water. Depth is the key factor: deeper pools require more water. Use the formula π × radius² × depth × 7.48 (for gallons) to calculate precise volume. Always measure depth from the shallow end to the deepest point.
How to Calculate Pool Water Volume
- Formula:
Volume (gallons) = π × radius² × average depth × 7.48 - Radius: Half the diameter (24 ft ÷ 2 = 12 ft).
- Average depth: (Shallow end + deep end) ÷ 2. Example: (3 ft + 5 ft) ÷ 2 = 4 ft.
- Conversion: Multiply by 7.48 to convert cubic feet to gallons.
Water Volume by Depth (24 ft Round Pool)
| Average Depth (ft) | Volume (Gallons) | Volume (Liters) | Fill Time (Hose, 9 GPM) |
|---|---|---|---|
| 3.5 ft | 11,800 | 44,660 | 22 hours |
| 4 ft | 13,500 | 51,100 | 25 hours |
| 5 ft | 14,700 | 55,640 | 27 hours |
| GPM = gallons per minute. Adjust for your hose flow rate. | |||
Factors Affecting Water Volume
- Shape: Round pools hold less than oval pools of the same length.
- Sloped bottoms: Gradual slopes increase volume vs. flat-bottom pools.
- Liner thickness: Subtract ~1-2 inches from depth for accurate measurements.
- Overflow: Fill to 1-2 inches below the skimmer to avoid displacement.
Tips to Reduce Water Waste
- Use a pool cover to minimize evaporation (loses ¼-½ inch/day in hot climates).
- Fix leaks immediately-check for drops > ¼ inch/day.
- Backwash filters only when pressure rises 8-10 PSI above normal.
- Reuse backwash water for irrigation (if chemically balanced).
Common Mistakes to Avoid
- Assuming all 24 ft pools hold the same-depth varies volume by 20%+.
- Ignoring displacement (swimmers, toys) when filling.
- Overfilling-excess water dilutes chemicals and strains the pump.
- Using incorrect units (e.g., meters vs. feet) in calculations.