Indoor Pool Dehumidification Calculator
Moisture load and dehumidifier CFM for an indoor pool.
Enter your values
ⓘ Live results
Results
- Estimated evaporation
- 117 lb/hr
- Equivalent moisture load
- 15.62 gal/hr
- Approx dehumidifier airflow
- 2,925 CFM
Quick answer
Indoor pool evaporation rate depends on water surface area, activity level and the air-to-water temperature difference.
Evaporation (lb/hr) = A x (Pw - Pa) x (0.089 + 0.0782 V) / Y
How to use the Indoor Pool Dehumidification Calculator
- 1Measure the pool's water surface area.
- 2Choose the typical activity level of the space.
- 3Use the estimated evaporation rate to size a pool dehumidification unit.
Worked example
Using the values the calculator loads with:
Inputs
- Pool surface area800 sq ft
- Activity levelRecreational swimming
- Air-water temp difference5 F
Results
- Estimated evaporation117 lb/hr
- Equivalent moisture load15.62 gal/hr
- Approx dehumidifier airflow2,925 CFM
Frequently asked questions
Why does activity level matter so much?
Splashing and moving water dramatically increases the exposed surface area for evaporation.
Do covers help?
Pool covers when not in use can cut evaporation and dehumidification load by 50-90%.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.