Volume ÷ flow rate

Pool volume in US gallons and pump/hose flow in gallons per minute (GPM)—time to fill in hours and minutes.

FAQ

How is fill time estimated?

Given US gallons to fill and a positive gallons per minute (GPM) flow, the page uses minutes = gallons ÷ GPM, then shows whole hours plus rounded minutes, with a secondary line for total minutes (one decimal). Pipe losses and pump curves are not modeled.

What does this estimate leave out?

Pipe losses and pump curves are not modeled.