Pool Volume Calculator
Calculate your pool volume in gallons, liters, and cubic feet for any pool shape. Enter your dimensions and get instant results.
Average Depth: 4.8 ft
How It Works
Pool volume is calculated by multiplying the surface area of the pool by its average depth, then converting cubic feet to gallons (1 cubic foot = 7.48 gallons).
- Rectangle: Length x Width x Avg Depth x 7.48
- Round: Diameter x Diameter x Avg Depth x 5.9
- Oval: Long Diameter x Short Diameter x Avg Depth x 5.9
- Kidney: Length x Width x Avg Depth x 7.48 x 0.45
- L-Shaped: (Section 1 area + Section 2 area) x Avg Depth x 7.48
Average depth is calculated as (Shallow End + Deep End) / 2.
Frequently Asked Questions
How do I calculate pool volume in gallons?
Multiply the pool's length, width, and average depth in feet, then multiply by 7.48 (gallons per cubic foot). For round pools, use diameter x diameter x average depth x 5.9. Average depth is calculated as (shallow end + deep end) / 2.
Why is knowing my pool volume important?
Accurate pool volume is essential for correctly dosing chemicals like chlorine, pH adjusters, and algaecides. Under-dosing leaves your water unsafe, while over-dosing wastes money and can damage pool surfaces and equipment.
What is the average depth of a pool?
Average depth is the midpoint between the shallow end and deep end. For example, a pool with a 3 ft shallow end and a 7 ft deep end has an average depth of 5 ft. This simple average works well for pools with a uniform slope.
How do I measure a kidney-shaped pool?
Measure the longest length and the widest width of the kidney shape. The volume formula uses a 0.45 multiplier to account for the irregular shape. For more precision, break the pool into sections and calculate each separately.
How do I convert between gallons and liters?
Multiply gallons by 3.785 to get liters. Multiply liters by 0.264 to get gallons. This calculator automatically displays both units for your convenience.