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Calculate pool water volume in gallons and liters for any pool shape.
A pool volume calculator estimates the water capacity of a swimming pool in gallons and liters based on its shape, dimensions, and average depth.
| Chemical | Dosage |
|---|---|
| Chlorine (liquid) | 1 gal per 10,000 gal |
| pH Increaser (soda ash) | 6 oz per 10,000 gal |
| pH Decreaser (muriatic acid) | 1 qt per 10,000 gal |
| Alkalinity Increaser | 1.5 lbs per 10,000 gal |
| Stabilizer (CYA) | 13 oz per 10,000 gal |
| Shock Treatment | 1 lb per 10,000 gal |
Formula
Rectangular: Gallons = L × W × Avg Depth × 7.48; Circular: Gallons = D² × Avg Depth × 5.9L = pool length in feet
W = pool width in feet
Avg Depth = (shallow + deep) ÷ 2 in feet
7.48 = gallons per cubic foot
Worked Example
30 × 15 ft rectangular pool, 3 ft shallow, 8 ft deep
Did you know? There are approximately 10.7 million residential swimming pools in the United States, and the average pool holds 20,000 gallons of water (source: Association of Pool & Spa Professionals).
Sources
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