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Rectangle Second Moment of Area

Online rectangle second moment of area. Idealized linear material model where stated; no failure assessment, allowable stress, structural certification or compliance calculation is provided.

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rectangle second moment of area calculator online

Use rectangle second moment of area online for width mm, height mm. Idealized linear material model where stated; no failure assessment, allowable stress, structural certification or compliance calculation is provided.

How to use it

Enter width mm. Set height mm. Select Calculate and check the labeled output. Copy or download the JSON result.

Options and example settings

OptionChoices / valueExample default
width mmMain input. Positive values. 20
height mmOption. Positive values. 40

Calculation method

Ixx_mm4 = width_mm*height_mm^3/12; Iyy_mm4 = height_mm*width_mm^3/12 (^ means exponentiation; trig functions ending in d use degrees).

Worked examples

Apply rectangle second moment of area to the case below, keeping the displayed units and assumptions. Idealized linear material model where stated; no failure assessment, allowable stress, structural certification or compliance calculation is provided.

Rectangle Second Moment of Area — worked case

Settings: height mm: 40

Input:

20

Calculated result for these inputs:

Output:

{
  "Ixx_mm4": 106666.66666666667,
  "Iyy_mm4": 26666.666666666668
}

Choose the right tool

Choose the loading case and boundary conditions before entering values. Engineering stress differs from true stress; beam and thin-wall formulas require their stated idealizations. These calculators do not establish allowable loads or safe designs.

Limitations and common mistakes

  • Idealized linear material model where stated; no failure assessment, allowable stress, structural certification or compliance calculation is provided.
  • Use the displayed unit in every field. Ratios and percentages are different inputs; percent fields use values such as 25 rather than 0.25.

Frequently asked questions

How can I use rectangle second moment of area calculator online?

Enter width mm. Set height mm. Select Calculate and check the labeled output. Copy or download the JSON result.

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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