Pond Volume & Pump Size Calculator

Dug pond 2.4 × 1.2 × 1.2 m. Asks volume in liters and pump size.

Calculations

• Surface area: 2.4 × 1.2 = 2.88 m²
• Volume: 2.4 × 1.2 × 1.2 = 3.456 m³ = 3,456 liters (≈913 US gal)

Pump Sizing

• Minimum: ½ pond volume/hour = 1,728 L/hr (≈456 gph)
• With fish/waterfall: 1–2× volume/hour = 3,456–6,912 L/hr (913–1,826 gph)
• Head height (lift to waterfall) reduces flow—check pump curve.

Define features (waterfall, fountain, fish load) to pick exact pump.