Pool Water Calculator
Calculate the volume of water in your pool and estimate chemical dosing. Enter your pool shape and dimensions to get accurate results.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Pool Water Calculator
- Select Pool Shape – Choose Rectangular, Oval, or Round from the dropdown.
- Choose Depth Type – Select Constant Depth (same depth everywhere) or Variable Depth (shallow and deep ends).
- Enter Dimensions – Input length, width, or diameter in feet. For variable depth, enter both shallow and deep end depths.
- Click "Calculate" – The tool computes the volume in gallons and liters, shows the formula used, and provides chemical dosing estimates (chlorine, shock, algaecide).
Important Notes:
- All measurements must be in feet (imperial).
- For variable depth, the shallow depth must be less than the deep depth.
- Chemical estimates are approximate; always follow product label instructions.
Previous Results
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Frequently Asked Questions
For rectangular pools, measure length and width. For round pools, measure the diameter. For oval pools, measure the longest length and widest width. Depth can be constant or variable (shallow and deep ends).
Rectangular: Length × Width × Average Depth. Oval: Length × Width × Average Depth × 0.785. Round: π × (Diameter/2)² × Average Depth. Then multiply by 7.48 to convert cubic feet to gallons.
The estimates are based on general guidelines (e.g., 0.00013 oz chlorine per gallon). Always follow the specific instructions on your chemical products for precise dosing.