DuctSizer is a tool that can quickly find the correct round, rectangular or oval duct size to fit on your inputs. You can use DuctSizer when you need quick, accurate answers to straight duct size or pressure loss questions. DuctSizer includes these features: English (IP) and/or SI units, with defaults saved, temperature and altitude corrected calculations, duct roughness input and reference information, calculations for any length of straight duct and calculations for round, rectangular and oval ducts.
