Pool volume calculator
Pool gallons for chemical dosing, heater sizing or refill planning.
Inputs
The formula
Rectangle: gal = L × W × avg depth × 7.48. Oval/round: multiply by 0.89.
Worked example
32 × 16 ft × 5 ft avg = 19,150 gal.
Frequently asked
›How do I find average depth?
Add shallow + deep depths, divide by two.
›Why 7.48?
7.48 US gallons in one cubic foot of water.