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Swimming Pool Volume (Gallons) from Dimensions Calculator

Estimate pool water capacity from length, width, and depth.

Calculates the volume of a rectangular swimming pool in gallons and litres: volume = L × W × avg_depth × 7.48052 gallons (using L and W in feet, depth in feet).

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

ft
ft
ft

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

gallons = L × W × D × 7.48052

In depth

Calculates the volume of a rectangular swimming pool in gallons and litres: volume = L × W × avg_depth × 7.48052 gallons (using L and W in feet, depth in feet).