Pool Volume Calculator
Updated Formulas shown
Gallons = surface area × average depth × 7.48. A 16 × 32 ft rectangular pool going from 3.5 to 8 ft holds about 22,023 gallons.
Pool volume
22,023 gal
83,365 liters
- Surface area
- 512 ft²
- Average depth
- 5.75 ft
- Cubic feet
- 2,944 ft³
- Water weight
- 91.8 tons
- Chlorine to raise 1 ppm (liquid 10%)
- 28.2 fl oz
Rule of thumb: about 12.8 fl oz of 10% liquid chlorine raises 10,000 gallons by 1 ppm.
Quick reference
| Pool | Gallons | Liters |
|---|---|---|
| 12 × 24 ft | 10,233 | 38,737 |
| 14 × 28 ft | 13,929 | 52,726 |
| 16 × 32 ft | 18,193 | 68,866 |
| 18 × 36 ft | 23,025 | 87,159 |
| 20 × 40 ft | 28,426 | 107,604 |
| 15 ft round, 4 ft deep | 5,288 | 20,016 |
| 18 ft round, 4 ft deep | 7,614 | 28,823 |
| 24 ft round, 4 ft deep | 13,536 | 51,241 |
Related calculators
Frequently asked questions
How many gallons is a 15 ft round above-ground pool?
About 5,300 gallons at 4 ft of water (π × 7.5² × 4 × 7.48).
How do I find the average depth?
Add the shallow and deep end depths and divide by two. For a pool with a long flat shallow section, weight the average toward the shallow depth.
Your business here? Sponsor this calculator from $13/week. See placements
Estimates only. Check quantities with your supplier or contractor before ordering.