Beam Calculator

Calculate beam deflection, bending moment, and shear force for cantilever and simply supported beams online. Supports point and distributed loads — free structural tool

Beam Type

Input Parameters

Beam Length L (mm)

Point Load P (N)

Load Position a (mm) from left

Elastic Modulus E (MPa)

Moment of Inertia I (mm⁴)

Results

M_max = Pab/L, δ_max = Pb(3L²-4b²)/(48EI)

Left Reaction Ra

500.00 N

Right Reaction Rb

500.00 N

Max Bending Moment M_max

250000.00 N·mm

= 250.0000 N·m

Max Deflection δ_max

0.104167 mm

= 104.1667 μm