Calculate Beam Deflection
Use this beam deflection calculator to estimate deflection for cantilever and simply supported beams under a center or end point load. This is useful for machine frames, tooling supports, structural members, brackets, and general mechanical design.
This calculator gives a practical engineering estimate using linear elastic beam theory. It does not replace full structural analysis for dynamic loading, distributed loads, stress concentrations, local buckling, or safety-critical design.
Simply Supported Beam with Center Load: δ = (F × L³) / (48 × E × I)
Need help applying this to a real machine?
Get connected with a qualified automation integrator for your project if you are reviewing machine frame stiffness, brackets, support members, or tooling deflection.
Find an IntegratorTypical Young's Modulus Values
| Material | Young's Modulus (psi) | Young's Modulus (GPa approx.) |
|---|---|---|
| Steel | 29,000,000 | 200 |
| Stainless Steel | 28,000,000 | 193 |
| Aluminum | 10,000,000 | 69 |
| Concrete | 3,600,000 to 4,400,000 | 25 to 30 |
| Wood | 1,000,000 to 4,500,000 | 7 to 31 |
What This Beam Deflection Calculator Solves
Engineers often search for tools like beam deflection calculator, cantilever beam deflection, simply supported beam calculator, steel beam deflection, aluminum beam stiffness, and Young's modulus beam formula. This page helps estimate beam stiffness quickly for brackets, machine bases, supports, fixtures, and structural members.
For more accurate results, use the correct section moment of inertia, exact support conditions, real loading location, and applicable safety factors.