Powerhead Flow Rate Calculator
Work out how much flow powerheads need to give an aquarium good circulation.
Compare Your Options And Get Clear Answers
Work out how much flow powerheads need to give an aquarium good circulation.
Powerhead Flow Rate Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Results update as you change the inputs.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Powerhead Quick Guide
Typical values for reference.
| Tank | Turnovers | Flow | Note |
|---|---|---|---|
| Freshwater | 5 to 10 | 375 to 750 gph | 75 gal |
| Planted | 8 | 600 gph | Gentle |
| Reef | 20 to 40 | 1500 to 3000 gph | Coral |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Powerhead Flow Rate Calculator FAQ
Answers to common questions about this calculator.
5 to 10 turnovers for freshwater, 20 to 40 for reef.
It gives a quick estimate of powerhead flow rate from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.