How Many Gallons in a 12-Foot Round Pool, 3.5 Feet Deep?
For a 12 ft round pool with water 3.5 ft deep, you need about 2,961 gal (us gallons). Also: liters: 11,207 L; cubic feet: 396 ft³; hours to fill with a hose at 10 gal/min: 5 hours.
Round Pool Volume Calculator
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| Liters | 11,207 L |
|---|---|
| Cubic feet | 396 ft³ |
| Hours to fill with a hose at 10 gal/min | 5 hours |
How this number is calculated
π × (12 ÷ 2)² × 3.5 ft = 396 cubic feet × 7.48 = 2,961 gallons.
Nearby sizes
| Size | US gallons |
|---|---|
| a 12 ft round pool with water 4 ft deep | 3,384 gal |
| a 12 ft round pool with water 3 ft deep | 2,538 gal |
| a 12 ft round pool with water 4.5 ft deep | 3,807 gal |
| a 12 ft round pool with water 5 ft deep | 4,230 gal |
Tips
- Use the actual water depth rather than the wall height.
- Manufacturers' rated capacities are usually for water filled to a given line; yours may differ.
- Use the volume to dose chemicals correctly.
Frequently asked questions
How much water do I need for a 12 ft round pool with water 3.5 ft deep?
For a 12 ft round pool with water 3.5 ft deep, you need about 2,961 gal (us gallons). Also: liters: 11,207 L; cubic feet: 396 ft³; hours to fill with a hose at 10 gal/min: 5 hours.
How is the quantity for a 12 ft round pool with water 3.5 ft deep calculated?
π × (12 ÷ 2)² × 3.5 ft = 396 cubic feet × 7.48 = 2,961 gallons.
How much does water for a 12 ft round pool with water 3.5 ft deep cost?
Using rough planning prices (per gallon of municipal water; varies widely by location), the material for a 12 ft round pool with water 3.5 ft deep comes to about $11.84 to $35.53. Prices vary by region and supplier, so get a local quote.