Swimming Pool Calculator
Calculate the water volume of rectangular, circular, or oval swimming pools in gallons and liters. Essential tool for chemical dosing.
Interactive Calculator
1. Provide Details
ft
ft
ft
2. Output Results
Pool Volume (Cubic Feet)1296 cu ft
Estimated Pool Water Capacity9695 gallons
Volume in Liters36699 L
Estimated Water Weight80855 lbs
How to Calculate: Formula & Steps
Computes volume in cubic feet, then multiplies by 7.48 (gallons per cubic foot). Oval and circular calculations apply shape multipliers.
Formula Used:
Gallons = Length (ft) × Width (ft) × Average Depth (ft) × 7.48Step-by-Step Calculation Example
A 24ft × 12ft rectangular pool with a 4.5ft average depth holds approximately 9,694 gallons of water.
Common Mistakes to Avoid
- Forgetting that pool depth is usually uneven, leading to an overestimation if the deep-end depth is used instead of the average depth.
Practical Use Cases
- Pool opening chemical balancing
- Water utility fee estimation
Expert Tips
- Add 5% volume cushion if your pool has wide stairs or custom seating configurations in the frame.
Frequently Asked Questions About Swimming Pool Calculator
How do you calculate average pool depth?
Add the depth of the shallow end to the depth of the deep end and divide by 2. E.g., (3ft + 6ft) ÷ 2 = 4.5ft average depth.
Why is knowing pool volume important?
Proper chlorine, pH, and algaecide dosing instructions are always given per 10,000 gallons of pool water, requiring precise volume math.
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