Circle Pool Volume Calculator
How much water does your kidney-shaped swimming pool hold?
Use our pool volume calculator to quickly find out by choosing your pool's shape, dimensions, and depth. Check out all shapes and sizes at our Pool Volume Calculator
Calculate Your Circle Pool's Size:
Calculating Pool Volume Essentials:
To determine the volume of your pool, you'll need to compute the surface area and average depth of your pool. This requires a few fundamental measurements:
- Length (L)
- Width (W)
- Depth (D) or Height (H)
- Diameter (d) (for circular pools)
- Radius (r) (for circular pools)
- The constant Pi (π ≈ 3.14)
For a rectangular pool, you can find the surface area by multiplying the length and width. When you include the depth (or height), you can perform a basic volume calculation.
Another critical element in this calculation is the fact that one cubic foot of water holds approximately 7.5 gallons. To determine the total gallons your pool can hold, simply multiply your final cubic foot measurement by 7.5.
How to Calculate Pool Volume Step-By-Step for a Circle Pool:
-
Step 1: Gather Information
- Measure the diameter (D) and depth (D) of your circular pool in feet.
-
Step 2: Calculate Volume
- To find the volume in cubic feet, use the formula: Volume = π x (D/2)^2 x Depth (D).
- Square the radius (D/2), multiply it by π (approximately 3.14159), and then multiply by the depth to get the volume in cubic feet.
-
Step 3: Convert to Gallons
- Convert cubic feet to gallons by multiplying the cubic feet value by 7.48052.
- Volume (gallons) = Volume (cubic feet) x 7.48052.
Common Pool Sizes
Check the average gallons that the most common pool sizes and shapes hold for in-ground and above-ground pools.
| Common Above-Ground Pool Sizes | ||
|---|---|---|
| 48" Wall Height | 52" Wall Height | |
| Pool Size | Gallons | Gallons |
| 15' Round | 5,300 | 5,800 |
| 18' Round | 7,600 | 8,300 |
| 20' Round | 9,400 | 10,200 |
| 24' Round | 13,600 | 15,300 |
| 27' Round | 17,200 | 18,600 |
| 28' Round | 18,500 | 20,000 |
| 11x25 Oval | 6,500 | 7,000 |
| 15x25 Oval | 7,800 | 8,400 |
| 15x30 Oval | 8,900 | 9,600 |
| 18x33 Oval | 10,600 | 11,500 |
| 18x38 Oval | 14,000 | 15,200 |
| Common Inground Pool Sizes | |
|---|---|
| Average Wall Height | |
| Pool Size | Gallons |
| 12x24 Rectangular | 10,800 |
| 16x32 Rectangular | 19,200 |
| 16x36 Rectangular | 21,600 |
| 18x36 Rectangular | 24,300 |
| 20x40 Rectangular | 30,000 |
| 16x32 Oval | 17,000 |
| 18x36 Oval | 21,700 |
| 20x40 Oval | 26,800 |
| 17x33 Grecian | 19,700 |
| 17x37 Grecian | 22,200 |
| 20x36 Grecian | 24,300 |
| 20x44 Grecian | 30,300 |
| 16x30 Kidney | 14,900 |
| 16x34 Kidney | 16,500 |
| 20x38 Kidney | 20,200 |
