Volume of Pool Formula

Pool Volume Formulas:

Rectangular: \[ V = L \times W \times D_{avg} \]
Circular: \[ V = \pi \times r^2 \times D \]

Pool Shape:

Length (L):

Width (W):

Average Depth (D_avg):

Pool Volume (ft³):

Definition: This calculator estimates the volume of water needed to fill a swimming pool based on its dimensions and shape.

Purpose: It helps pool owners and professionals determine water requirements for filling or treating pools.

The calculator uses different formulas based on pool shape:

Rectangular: \[ V = L \times W \times D_{avg} \]
Circular: \[ V = \pi \times r^2 \times D \]

Where:

Details: Accurate volume calculation ensures proper chemical treatment, pump sizing, and heating requirements.

Tips: Select pool shape, then enter the required dimensions. All values must be > 0.

Q1: How do I calculate average depth?
A: For rectangular pools: (shallow end depth + deep end depth) ÷ 2

Q2: How do I convert cubic feet to gallons?
A: Multiply cubic feet by 7.48052 to get gallons

Q3: What about irregular shaped pools?
A: Break into regular shapes (rectangles/circles) and calculate each section separately

Q4: Why is pool volume important?
A: Essential for proper chemical dosing, filtration system sizing, and heating calculations

Q5: How accurate should my measurements be?
A: For chemical treatment, measure to nearest 6 inches; for construction, measure to nearest inch