Free Rectangular Beam Moment of Inertia & Calculator
Compute Area, Centroid, Moment of Inertia, Elastic and Plastic Section Moduli, and Radius of Gyration instantly. Enter dimensions manually or load standard steel databases.
⚙ Configuration
Section Geometry
Steel
Cold-Formed
Concrete
I-Section
Channel
T-Section
Angle
Double Angle
Box Section
Pipe
Dbl Channel
Builtup I Cov
Hybrid I
Hybrid U
Unit System
mm
cm
m
in
ft
No pre-loaded standard profiles in this category.
Dimension Settings
Depth/Diameter (t3)
t3
mm
Width (t2)
t2
mm
Section Properties Results
Property
Sym
Value
Unit
Cross-sectional Area
A
20000
mm²
Centroid location (X-axis)
xc
50
mm
Centroid location (Y-axis)
yc
100
mm
Strong Moment of Inertia
Ix
66666666.6667
mm⁴
Weak Moment of Inertia
Iy
16666666.6667
mm⁴
Strong Elastic Modulus
Sx
666666.6667
mm³
Weak Elastic Modulus
Sy
333333.3333
mm³
Strong Radius of Gyration
rx
57.735
mm
Weak Radius of Gyration
ry
28.8675
mm
Polar Moment of Inertia
J
83333333.3333
mm⁴
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