Second Moment of Area Calculator
Calculate area, centroidal second moments of area and section moduli for rectangles, solid circles and annuli.
Second Moment of Area Calculator User manual
- Fill in the parameters or select the file according to the form, and check the unit and format first.
- Find the horizontal centroidal second moment of area for a rectangle 20 mm wide and 40 mm high.
- Click the processing button to view the results, you can copy or download and save.
Calculation method and processing rules
Apply centroidal area-moment formulas. For an annulus, subtract the inner circular opening's contribution.
scope of use
These are geometric area properties, not mass moments of inertia. Beam strength, deflection and structural safety are not calculated.
Will the input content be saved on the server?
This tool handles input in the browser, and does not upload files or form content. Typing practice scores are only saved in the native browser.
Why may the result be different from other tools?
These are geometric area properties, not mass moments of inertia. Beam strength, deflection and structural safety are not calculated. Please compare the input unit, rounding method, applicable rules and data version first.