properties

First Moment of Area Calculator

Calculate first area moments used in centroid and shear analysis.

First Moment of Area Calculator

Geometry input

Define your section

01 / INPUT

First moment of area

Width of the rectangular area

Height of the rectangular area

Distance from centroid to reference axis

Live analysis

Calculated properties

02 / OUTPUT
First moment of area
5,000
mm²
Distance25 mm
First moment Q125,000 mm³
Applied formulaQ = A·ȳ

Length inputs are converted to millimetres for calculations. Review the assumptions before using results in engineering work.

About this calculation

Enter the required dimensions and select the appropriate length unit. The calculator displays results based on the selected calculation and its stated assumptions.

Moment of inertia and related section properties depend on the geometry, reference axes, units, and assumptions used. Review the displayed formula and assumptions before using any result.

These tools are intended for educational and preliminary engineering calculations. Independently verify critical results before using them in engineering design or safety-related work.

Calculation methodology

Learn about formulas, units, assumptions, and calculation limitations in our calculation methodology.

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