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Pool Volume Calculator

Estimate pool gallons and starting chlorine dose.

Pool volume in gallons is length × width × average depth (in feet) × 7.48 for a rectangle, or × 5.9 for oval and × 5.9–6.7 for round shapes. A 16 × 32 ft pool averaging 5 ft deep holds about 19,000 gallons. Enter your pool shape and depths for gallons, liters and turnover-rate pump sizing.

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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