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Pool Volume Calculator

Volume of a rectangular pool in litres and gallons.

Compute the water volume of a rectangular pool from length, width, and average depth, in cubic metres, litres, and US gallons.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

m
m
m

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

Volume = L × W × average depth. 1 m³ = 1000 L ≈ 264.172 US gal.

In depth

Compute the water volume of a rectangular pool from length, width, and average depth, in cubic metres, litres, and US gallons.