Recommended GPH
3,067
Volume
1,410 gal
Head Loss
4.5 ft
$/month
$15.42
Vertical lift from pump to outlet
Recommended Pump Size
3,067 GPH
1,410 gallon pond
Turnover
0.5 hr
Head
4.5 ft
$/month
$15.42
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Price as of Jun 21, 2026. Product prices and availability are accurate as of the date indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Inputs
Result
Volume = pi × 5 × 4 × 3 × 7.48 = 1,410 gal. Recommended = 1,410 × 1.5 = 2,115. Head = 3 + 15/10 = 4.5 ft. Adjusted = 2,115 × (1+4.5×0.10) = 3,067.
Inputs
Result
Volume = 6 × 5 × 2.5 × 7.48 = 561 gal. Recommended = 561 × 1.5 = 842. Head = 2 + 10/10 = 3.0 ft. Adjusted = 842 × 1.30 = 1,095.
Your pump should circulate the entire pond volume once per hour. For a 1,500 gallon pond, you need at least 1,500 GPH. Add 10% per foot of head height (vertical lift from pump to water outlet). A 1,500 gallon pond with 3 ft of head needs about 1,950 GPH.
| Pond Size | Min GPH | Fish Pond GPH | Koi Pond GPH |
|---|---|---|---|
| 500 gal | 500 | 750 | 1,000 |
| 1,000 gal | 1,000 | 1,500 | 2,000 |
| 2,500 gal | 2,500 | 3,750 | 5,000 |
| 5,000 gal | 5,000 | 7,500 | 10,000 |
Head height is the vertical distance water must travel from the pump to the highest outlet point (waterfall, filter return). Every foot of head reduces pump output by about 10%. A pump rated 2,000 GPH at 0 ft head may only deliver 1,400 GPH at 3 ft of head.
A typical 1,500 GPH pond pump uses about 75 watts and costs $7–10 per month running 24/7 at $0.14/kWh. Energy-efficient magnetic drive pumps use 30–50% less electricity than direct-drive pumps. Annual costs range from $80–$130 for most backyard ponds.
Yes, if you have fish. The pump circulates water through the filter, maintaining oxygen levels and removing waste. Turning off a fish pond pump for more than 2 hours can cause oxygen depletion. Decorative ponds without fish can run on a timer (12–16 hours/day).
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Last Updated: Jul 13, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.
