Pool volume calculator

Enter the pool shape, the shallow-end and deep-end depths, and the other dimensions. The result is in litres and kilolitres. Switch the input units to feet and US gallons when those are the figures you have. The inputs stay in the URL so the result can be shared.

Formulas

Average depth = (shallow end + deep end) ÷ 2. Litres = cubic metres × 1,000.

Rectangle

length × width × average depth. Source: Built Simple.

Round

π × (diameter ÷ 2)² × average depth. Source: Built Simple.

Oval

π × (length ÷ 2) × (width ÷ 2) × average depth. Source: Built Simple.

Kidney

length × (widest width + narrowest width) × 0.45 × average depth. Source: Pool Advisor.

Kidney volume is an approximation. The 0.45 factor is the two-width method published by Pool Advisor and Elite Pool Covers . Feet convert at 0.3048 metres per foot. US gallons convert at 3.785411784 litres per gallon.

A link on the form fills this volume on the salt and chemical calculators.