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Estimate Your Pond Volume & Water Capacity

Calculate pond volume in gallons, cubic feet, and acre-feet from your pond's shape, size, and depth. Includes surface area, fish stocking & aeration estimates, a shape comparison, and a downloadable PDF report.

Average depth is the single biggest factor in pond volume — measure depth at several points across the pond and use the average. Figures are estimates only. For any chemical treatment, always follow the product label and your state/local regulations.
1 Pond shape & surface size
ft
ft
2 Depth measurements
ft
0 ft15 ft30 ft
ft
0 ft20 ft40 ft
3 Adjustments & units
%
50%75%100%
Applies to irregular / natural ponds only
TOTAL POND VOLUME (US GALLONS)
—
Calculate to see volume
Surface area · acre-feet below
Key volume conversions
📦
Volume in cubic feet
—
🌊
Volume in acre-feet
—
How the volume is calculated
Surface area—
Surface acres—
Average depth—
Volume (cubic feet)—
US gallons (× 7.48)—
Acre-feet—
Liters—
Cubic meters (m³)—
Total volume (US gallons)—
Key figures
US gallons —
Cubic feet —
Acre-feet —
Surface area (sq ft) —
Surface acres —
Liters —
Pond management estimates
Recommended fish stock —
Aeration (fountain) —
Pond dye (approx.) —
Stocking uses standard warm-water pond rates (per surface acre); aeration and dye rates vary by product — always follow the label.
Visualizations
Volume by average depth
Balanced stocking mix