Pool Volume Calculator
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Pool water volume from shape and dimensions — rectangle or round, depth in feet.
Pool dimensions
Pool volume
15,320 gal
57,993 L · 2,048 cu ft
- Liters
- 57,993 L
- Cubic feet
- 2,048 cu ft
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Pool water volume
Pool volume equals the water-filled cross-section area times average depth. Rectangular pools: length × width × depth. Round pools: π × radius² × depth. Results convert cubic feet to US gallons (× 7.48) and liters.
Use average depth if the shallow and deep ends differ — (shallow + deep) ÷ 2. This calculator assumes a single depth value and uniform walls; freeform pools need segmented rectangles or professional measurement.
Example: a 32 ft × 16 ft rectangle at 4 ft average depth holds 32 × 16 × 4 = 2,048 cu ft → about 15,320 gallons (58,000 liters). A 24 ft diameter round pool at 4 ft depth holds about 13,500 gallons.
Common questions
What units should I use?
Enter length, width, diameter, and depth in feet. Output shows US gallons and liters for chemical dosing and fill-time estimates.
Does this include the deck?
No — only the water volume inside the pool shell. Plumbing lines and surge tanks are excluded.
How accurate is this for kidney-shaped pools?
Irregular shapes need approximation by splitting into rectangles or consulting a pool builder. This tool covers standard rectangle and round geometry only.