Калькулятор площади воздуховод

The duct area calculator allows designers, engineers and surveyors to easily calculate the area of ​​ducts and fittings of the ventilation system: duct, outlet, transition, tee, plug, weft, umbrella and deflector.

The application has the ability to save and delete, if necessary, your calculations, as well as export to pdf.

Nice minimalistic flat interface.