Why does knowing pool volume matter?

Chemical dosages (chlorine, pH adjusters, algaecides) are calculated per 10,000 gallons. An incorrect volume leads to under-treatment (algae/bacteria) or over-treatment (skin irritation, equipment damage).

How many gallons does an average home pool hold?

A typical 16×32 ft rectangular pool with 5 ft average depth holds about 19,200 gallons. Above-ground round pools (15 ft diameter, 4 ft deep) hold about 5,300 gallons.

Pool Volume Calculator — Gallons in a Swimming Pool

The Pool Volume Calculator tells you how many gallons of water your pool holds — essential information for chemical dosing, pump sizing, heating costs, and water delivery. Enter your pool dimensions and shape for an accurate estimate.

Pool Shape

Length (feet) — or Diameter for Round

Width (feet) — not used for Round

Average Depth (feet)

Frequently Asked Questions

For a pool with a slope: (shallow end depth + deep end depth) / 2. For a flat-bottom pool, the average depth equals the actual depth.

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