Pool calculators

Everything about a pool starts with its gallons. Tell us yours once and every dose, heater and cost calculator here starts from it.

My pool

gal

Total water in the pool, not the size of the shell.

Don't know your gallons? Calculate it
Shape
ft
ft
ft

Shallow end plus deep end, divided by two. About 4.5 ft (1.4 m) for a typical backyard pool.

About 19,150 gal (72,491 L)

Pool type
How is it sanitized?

Your pool

15,000gal

56,781 L

Nothing is saved until you type a volume. It stays on this device and is never sent to us.

Pool volume & water

Every dose, heater and pump starts with gallons. Work out the volume of any pool shape, how long the hose takes to fill it, and how much water it loses in a week.

Pool chemistry

Enter your test results and your gallons, and get the amount of each product to add, in the order to add it, in cups, ounces, pounds or bags.

Heaters, pumps & filters

Size the heater for the temperature rise you want, the pump for your turnover rate, and the filter for the flow, then see what each costs to run.

Pool costs

A low, typical and high price for the pool you are considering, the monthly payment on it, and what it costs to keep running.