Area moment of inertia calculator Area moment of inertia or second moment of area Ix, Iy, polar moment of inertia Jz, section modulus Zx, Zy are geometrical properties of sections used to determine the strength of parts that compose a machine, beams, columns and other structural assemblies. Ix is calculated about horizontal X-axis, and Iy about vertical Y-axis . The Z-axis is perpendicular on the plane X-Y through the centroid G. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to print (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to email a link to a friend (Opens in new window)