Beam Calculator

Check the bending stress and deflection of a beam or cantilever under a point load or an evenly spread load. Choose a section and material, and the calculator works out the section properties for you.

Beam and load

Section and material

Results

Maximum bending moment
Maximum bending stress
Safety factor against yield
Maximum deflection
Span ÷ deflection
Second moment of area I
Section modulus Z
Area and mass

Simple elastic beam theory, checking bending stress and deflection only. It does not check shear, buckling, local crushing, connections or fatigue, and section properties ignore corner radii. Use it to size early concepts, then check the design to the relevant code.