Pool Volume Calculator
Opening your pool for the summer? Calculate the exact volume in gallons to ensure proper chemical balance and maintenance.
🏊Pool Volume
Formula:
Volume = Area × Avg Depth
Avg Depth = (Shallow + Deep) / 2
Feet
Feet
Feet
Feet
Estimated Volume
US Gallons
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Liters
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Mathematical Principles
Pool volume calculation requires finding the cubic footage and then converting it to gallons. The key is accurately estimating the average depth.
1. Average Depth
For pools with a constant slope from shallow to deep:Avg Depth = (Shallow Depth + Deep Depth) / 2
2. Volume Formulas (Cubic Feet)
- Rectangle: Length × Width × Avg Depth
- Round: π × Radius² × Avg Depth
- Oval: π × (Length/2) × (Width/2) × Avg Depth
3. Gallon Conversion
There are approximately 7.48 US gallons in 1 cubic foot.Gallons = Cubic Feet × 7.48
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Frequently Asked Questions
Add the shallow end depth and the deep end depth, then divide by 2. For example, if shallow is 3ft and deep is 8ft: (3 + 8) / 2 = 5.5ft average depth.
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Tips
- Enter the dimensions in the same unit for consistency.
- Results update automatically as you type.
- Use the unit selector to convert between different measurement systems.
Need Help?
Check out our guide on how to use this calculator properly and understand the concepts behind it.
Pool calculation guide