What does this tool do?
Pool chemicals and heating are dosed by volume, so the gallon count matters. This calculator uses average depth and the pool shape to estimate water volume and weight.
The Formula
Rectangle: L × W × Depth; Circle: π × (Diameter ÷ 2)² × Depth; Gallons = Cubic feet × 7.48Frequently Asked Questions
Why use average depth instead of maximum depth?
Most pools slope from shallow to deep. Average depth gives a better volume estimate, while using only the deepest point would overstate the gallons.
Is this accurate enough for chemical dosing?
It is a close planning estimate. For precise dosing, confirm the volume with the pool builder or a water meter, and follow test results rather than volume alone.