Pool pump size calculator
Use our pool pump size calculator to calculate accurate size and measurement values instantly.
Calculator
Estimate pump shaft power from flow, head, and efficiency.
Formula: P = rho x g x Q x H / efficiency
What each field means
- Flow Rate (m3/h): Enter a valid value for this field.
- Total Head (m): Enter a valid value for this field.
- Pump Efficiency (%): Example: 60
Estimated Pump Power (kW)
Your result will appear here.
About Pool pump size calculator
The Pool pump size calculator helps you estimate home, room, and equipment sizing values quickly using consistent assumptions and practical calculation rules.
Formula Explanation
P = rho x g x Q x H / efficiency
Inputs You Need
- Required measurement values relevant to this calculator
- Unit selection: Flow Rate (m3/h), Total Head (m), Pump Efficiency (%)
- Optional tolerance, safety, or scenario values if applicable
Step-by-Step Usage
- Enter your known values in the calculator fields.
- Select units and options that match your scenario.
- Click Calculate to generate your output.
- Copy, save, or share the result for later reference.
Example
Run the tool with realistic values from your use case and compare the output against expected ranges for home, room, and equipment sizing calculations.
Method Sources
Frequently Asked Questions
Is this Pool pump size calculator accurate?
Yes, when correct inputs and units are provided.
Which units does this calculator support?
This tool is optimized for Flow Rate (m3/h), Total Head (m), Pump Efficiency (%).
Can I use this calculator on mobile?
Yes, the form is optimized for touch inputs and smaller screens.