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)	Metric Inch
INPUT PARAMETERS
Parameter	Value
Flange-flange inner face height [H]		mm cm m inch ft
Width [B]
Flange thickness [h]
Web thickness [b]

Please Wait... 

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

Supplements:

• Standard Beam Channel Sizes Dimensions
• Section Properties Calculators

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.