Skip to main content
Calcimator

Pool Pump Sizing Calculator

Size a pool pump based on turnover rate, pipe friction loss, and total dynamic head with energy cost estimates.

Inputs

gal
hrs
in
ft
ft

Results

Required Flow Rate

31.3 GPM

Recommended Pump HP

0.09 HP

Pipe Friction Loss1.98 ft head
Total Dynamic Head6.98 ft
Annual Energy Cost$31.86
How to Use This Calculator
  1. Enter your pool volume in gallons — use the Pool Volume Calculator if needed.
  2. Set the desired turnover time in hours (8 hours is the standard for residential pools).
  3. Enter the main pipe diameter in inches and the total pipe run length in feet for friction loss calculation.
  4. Set the total head in feet — this is the sum of elevation change and equipment resistance (filter, heater).
  5. Review Required GPM and Pump HP to select the correct pump model for your system.
  6. Check Annual Energy Cost to compare single-speed vs. variable-speed pump savings over time.
Ad Placeholder

Related Calculators

Pool Volume Calculator

Calculate pool water volume in gallons for rectangular, round, and oval pools based on dimensions and depth.

Pool Heater Sizing Calculator

Size a pool heater based on pool volume, temperature rise, surface area, and wind exposure using BTU calculations.

Water Feature Flow Calculator

Calculate pump size, pipe diameter, and flow rate for waterfalls, fountains, and sheer descent water features.

Ad Placeholder