Pool Area Calculator Need to calculate the surface area of your swimming pool? Use our handy Pool Surface Calculator below. It will help you to determine the exact amount of Ultraguard super epoxy swimming pool material you’ll need. Total Pool Surface Area: 0 sq ft. Select Your Shape: Round Oval Rectangle Lazy L Roman Kidney Bean Apply Your Measurements: Minimum pool depth: ft. Maximum pool depth: ft. Pool Diameter (D): ft. Pool Diameter 1 (D1): ft. Pool Diameter 2 (D2): ft. Pool Length (L): ft. Pool Width (W): ft. Pool Length 1 (L1): ft. Pool Length 2 (L2): ft. Pool Length 3 (L3): ft. Pool Length 4 (L4): ft. Pool Width 1 (W1): ft. Pool Width 2 (W2): ft.