theorems
Parallel Axis Theorem Calculator
Translate an area moment between parallel axes using the parallel-axis theorem.
Parallel Axis Theorem Calculator
Define your section
Parallel-axis theorem
Enter Ix in the selected unit to the fourth power
Enter area in the selected unit squared
Distance between parallel axes
Calculated properties
I = Ic + Ad²- Enter centroidal Ix in the selected unit⁴ and area in the selected unit².
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.