Frequently Asked Questions
How do I calculate gallons in a rectangular pool?
Volume (gal) = length × width × average depth × 7.48. The 7.48 converts cubic feet to gallons. For an oval pool, use length × width × depth × 5.9.
Why does pool volume matter?
It determines how much chlorine, shock, algaecide, and other chemicals to add. Overdosing wastes chemicals and can damage liners and skin.
What is "average depth" if my pool slopes?
Add the shallow and deep depths, then divide by 2. So 3 ft shallow and 8 ft deep gives an average of 5.5 ft for the calculation.
How long does it take to fill a pool?
Divide gallons by your hose flow rate (typical garden hose ≈ 9-17 gpm). A 20,000 gallon pool can take 24-36+ hours.
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Estimates for informational purposes only.
Important Disclaimer: Estimates for informational purposes only.
This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.