# CROSS SECTIONAL AREA CALCULATOR

Cross sectional area calculator for hollow cylinder, I beam, isosceles triangle, rectangular bar, angle, round bar, hollow rectangle, equilateral triangle, C channel and T section. Beam Cross Section I Beam Hollow Rectangle Rectangle C Channel T Section Circular Hollow Section Round Bar Angle Isosceles triangle Equilateral triangle Unit System (Quick selection) MetricInch INPUT PARAMETERS Parameter Value Flange-flange inner face height [H] mm cm m inch ft Width [B] Flange thickness [h] Web thickness [b]
 RESULTS Parameter Value Cross section area [A] --- mm^2 cm^2 inch^2 ft^2

Note: Use dot "." as decimal separator.

### Cross Sectional Area Formula:

 I Beam Area Formula Parameter Equation Cross section area A = 2Bh + Hb
 Hollow Rectangle Area Formula Parameter Equation Cross section area A = BH-bh
 Rectangle Area Formula Parameter Equation Cross section area A = BH
 C Channel Area Formula Parameter Equation Cross section area A = 2Bh + Hb
 T Section Area Formula Symbol Equation Cross section area A = Bh + Hb
 Hollow Circle Area Formula Parameter Equation Cross section area A = πd2/4 - πd12/4
 Round Bar Area Formula Parameter Equation Cross section area A = πd2/4
 Angle with Unequal Legs Area Formula Parameter Equation Cross section area A = t(b + d - t)
 Isosceles Triangle Area Formula Parameter Equation Cross section area A = b*h/2 Altitude h=(a2-(b2*1/4))0.5
 Equilateral Triangle Area Formula Parameter Equation Cross section area A = 0.4330a2

### Reference:

• Oberg, E. , Jones ,F.D. , Horton H.L. , Ryffel H.H., (2016) . Machinery's Handbook . 30th edition.  Industrial Press Inc.
• Oberg, E. , Jones ,F.D. , Horton H.L. , Ryffel H.H., (2012) . Machinery's Handbook . 29th edition.  Industrial Press Inc.