Circular Shaped Pool Calculator

Enter all values in feet and decimals (i.e. 12.5).
Calculation includes a 2 foot overlap for pool edges.

Pool Diameter:

Max Pool Depth:
Average Pool Depth:

Pool Volume: gallons
Liner size:


X  feet


Round Pool Liners

If you have a round swimming pool, measure the diameter straight across the center of the pool in a couple of different places, inside the top of the pool liner wall to inside the top of the opposite wall. Sometimes above ground pools get slightly out of round and taking the average of 2 or 3 diameter measurements is a good idea. The circular liner pool calculator will give you an estimate only of pool volume liner size. Be sure to check with a pool specialist before getting a pool liner.