Pool Volume Calculator
Estimate pool gallons and starting chlorine dose.
Use this pool volume calculator to estimate a rectangular pool’s capacity in gallons from its length, width, and average depth. It also provides a starting dose of 12.5% liquid chlorine: approximately 1 oz per 10,000 gallons raises free chlorine by about 1 ppm.
Volume
16,831
gallons
Liquid chlorine 12.5%
5.05
fl oz to dose
Volume
16.8
thousand gal
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How does the pool volume calculator work?
Volume = length × width × average depth × 7.4805 (gallons per ft³). 1 oz of 12.5% liquid chlorine per ~10,000 gallons raises free chlorine by ~1 ppm.
What else do people ask about this calculator?
How many gallons in a 15x30 pool?
A 15×30 ft rectangular pool with 5 ft average depth holds ~16,835 gallons.
How much chlorine to shock a pool?
To raise FC by 5 ppm in 15,000 gallons: ~75 oz (about 2.3 quarts) of 12.5% liquid chlorine.
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