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STRUCTURAL

Moment of Inertia Calculator

Second moment of area for a solid rectangle about its centroidal axis.

Transparent calculationFormula and assumptions shown
01

Enter your values

02

Your result

Second moment of area66,666,666.666667mm⁴
FORMULA USEDI = b h³ / 12
METHOD

How this calculation works

The calculator substitutes your values into the stated engineering relationship and evaluates the result using the displayed units. Change any input to recalculate instantly.

Important

This is an idealised engineering calculation. Confirm material properties, loading conditions and applicable design factors before specification or construction.