Productivity
Ductulator - Duct Sizing
Ductulator compares HVAC duct sizes based on airflow, allowable friction or target velocity.
Consider it if you want preliminary size options without reading each row of a duct chart.
It can show several compatible dimensions and update results as you change the assumed air flow.
Keep in mind: Calculations use specified air density and material assumptions. Verify conditions, code and project requirements for actual design.
Inside the app
Official product images
What you can do
- Enter airflow and choose friction or velocity sizing
- Compare circular, rectangular or flexible duct options
- Adjust dimensions and switch between IP and SI units
Good for
- HVAC practitioners doing initial sizing checks
Consider alternatives for
- Anyone needing a final engineered design or site validation
Limitations & considerations
- Captured minimum: iOS 18.6.
- Calculations use specified air density and material assumptions. Verify conditions, code and project requirements for actual design.
Privacy & permissions
The captured listing does not detail how entered project figures are stored.
Sources & review notes Updated Nov 11, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- US App Store developer description
Complete description, download price and compatibility metadata captured 2026-11-02.
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