Swimming Pool Volume Calculator

Free swimming pool volume calculator. Enter your pool dimensions to find total water capacity in liters or gallons for rectangular, round, and oval pools.

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Volume (m³) hesaplanacak
Volume (Liters) hesaplanacak
Volume (US Gallons) hesaplanacak
Fill Time at 20 L/min hesaplanacak

Why Calculate Pool Volume?

Knowing your pool's exact water volume is essential for proper chemical dosing (chlorine, pH, alkalinity), calculating heating costs, and sizing filtration equipment. Under-dosing chemicals risks bacterial growth; over-dosing wastes money and irritates swimmers.

Volume Formulas by Shape

Rectangular Pool

Volume = Length x Width x Average Depth

Example: 8 m x 4 m x 1.5 m = 48,000 liters

Circular Pool

Volume = pi x r2 x Average Depth

Example: radius 3 m, depth 1.4 m = pi x 9 x 1.4 = 39,584 liters

Oval Pool

Volume = pi x (Length/2) x (Width/2) x Average Depth

Pools with Varying Depth

For pools with a shallow end and deep end:
Average Depth = (Shallow Depth + Deep Depth) / 2

Chemical Dosing Reference

Pool VolumeChlorine (ppm 1-3)pH (7.2-7.6)
20,000 L~200 g/weekAdjust by 0.1 increments
50,000 L~500 g/weekTest 2-3x per week
100,000 L~1 kg/weekUse automated dosing

Calculating Pump Turnover

Pool pump should turn over the entire pool volume every 8 hours:
Required flow rate = Pool volume (L) / 8 hours / 60 minutes = L/min

How to Use This Calculator

Using our calculator is simple: enter the required values into the input fields and click the calculate button. Results are displayed instantly on screen. You can adjust the values and recalculate to compare different scenarios and find the best option for your situation.

Frequently Asked Questions

QuestionAnswer
How accurate are the results?We use standard formulas and up-to-date 2025 rates. Individual circumstances may vary slightly.
Is this calculator free?Yes, completely free and no registration required.
What should I do for exact figures?For precise information, consult a relevant professional or official authority.
Does it work on mobile devices?Yes, it works seamlessly on all devices and screen sizes.

Important Notes

This calculator is provided for informational purposes only. For legal, financial, or medical decisions, always seek advice from qualified professionals. Calculation results do not constitute official documents. Legislative changes may affect results; please visit the relevant official website for the most up-to-date information. Our calculators are regularly updated to reflect current regulations and rates.

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Frequently Asked Questions

Typically 1-3 ppm of free chlorine. For a standard shock treatment, use 7.6 g of granular chlorine (65% available chlorine) per 10,000 liters.
Under normal conditions with a cover, you need to top up 1-3 cm per week due to evaporation. Full refills are typically needed every 3-5 years.
Pool chemical calculators need the exact volume. Knowing your pool volume in liters lets you calculate the correct dose per label instructions.