This calculator calculates the deflection, bending stress using length, width, height, force, material values.
Formula:
MI for Solid Rectangular Beam = ((Height3 x Width) / 12)
Deflection = (Length3 x Force) / (3 x E x MI)
Bending Stress = (Force x Length) / (MI / (0.5 x Height))
MI = Moment of Inertia
E = Modulus of Elasticity in psi