: Sites like MEP Excel offer macro-enabled Excel Duct Fitting Calculators that use VBA to perform pressure loss calculations based on ASHRAE standards.
The ASHRAE Duct Fitting Database Excel offers several features and benefits that make it an essential tool for HVAC design: ashrae duct fitting database excel
The database contains loss coefficients ($C$-values) for hundreds of specific fittings—from round elbows to rectangular transitions, fire dampers, and junctions. The core formula it relies on is: : Sites like MEP Excel offer macro-enabled Excel
If you want to automate your workflow, you can create a custom Excel sheet that mirrors the ASHRAE methodology. Define the Critical Path ashrae duct fitting database excel