Construction & Materials
Cantilever Beam Calculator
Calculate maximum moment, deflection and reaction for a cantilever beam with a point load at the free end.
Your inputs
Change any value to update the result instantly.
Maximum bending moment
15 kN·m
Reaction at fixed support
5 kN
Maximum deflection
0.28 mm
Fixed-end moment
15 kN·m
Formula and working
Mmax = P·L; δmax = PL³/(3EI)
- 1
Collect the inputs
Beam length L = 3 m; Point load P at free end = 5 kN; Modulus of elasticity E = 200,000,000 kPa; Moment of inertia I = 0.0008 m⁴
- 2
Apply the formula
Mmax = P·L; δmax = PL³/(3EI)
- 3
Result
Maximum bending moment = 15 kN·m
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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