Above-Ground Pool Volume Calculator
Knowing your pool's exact water volume helps with chemical dosing, filling time, and heating cost estimates. Enter your pool's shape and dimensions below.
Water Volume
—
Cubic Feet—
Gallons—
Liters—
About this calculator
Calculate the water volume in gallons or liters for round or rectangular above-ground pools based on their dimensions.
Frequently Asked Questions
How do I measure average depth if my pool floor slopes?
Add the shallow end depth and deep end depth together and divide by two to estimate the average water depth.
Why does this matter for chemicals?
Chlorine, shock, and pH adjuster dosages are all calculated per thousand gallons, so an accurate volume prevents over- or under-treating your water.
Is this accurate for oval pools?
For oval pools, use the rectangular option with length and width as an approximation, which will slightly overestimate volume.