How can I calculate my Pool Size?

Knowing your pool size is a crucial element when looking for any pool equipment or chemicals. You need to know how much water you have in your pool in order to get the right size equipment or to use the right amount of chemicals to balance your water. But it might be confusing to try and calculate your gallons so we’re here to help.

The following a few simple formulas to calculate a ESTIMATE of your pool capacity. You should always go with equipment that it rated for a bit higher than your actual capacity to ensure your equipment can always have more than it needs too.

Rectangle Pools:
L x W x AD x 7.5 = gallons Example: 32 x 16 x 6 x 7.5 = 23,040 gallons

Circular Pools:
D (north to south) x D (east to west) x AD x 5.9 = gallons Example: 15 x 15 x 6 x 5.9 = 7,965 gallons

Oval Pools:
D (longest points) x D (shortest points) x AD x 5.9 = gallons Example: 30 x 15 x 6 x 5.9 = 15,930 gallons

Irregular pools:
These are a bit more complicated, you can ask your pool installer or can use the formulas above to make an estimate depending on what the shape most resembles.