Area and velocity

Aerodynamics and networks

Surface areas of ducts and fittings, converted into air velocity and into a schedule.

Online calculators

Area calculation of ductwork

Calculators for fitting surface areas and air velocity in ducts

Surface area of a circular duct

Input data

Length, L

m

Diameter, D

mm

Quantity

off

Price per m²

₽

Result

Area, each

0.00m²

Total area

0.00m²

Surface area of a rectangular duct

Input data

Width, A

mm

Height, B

mm

Length, L

m

Quantity

off

Price per m²

₽

Result

Area, each

0.00m²

Total area

0.00m²

* Areas are taken off outside dimensions, excluding flanges and fixings