Bending Moment Calculator
Calculate bending moment at any point on a simply supported beam under uniform or point load.
How to Use the Bending Moment Calculator
- Enter total load in kN.
- Enter beam span in metres.
- Enter position along the beam.
- Review bending moment at x and maximum.
Use Cases
- •Beam flexural design
- •Reinforcement detailing
- •Structural load analysis
Formula
UDL: M = wx(L−x)/2; Point: Mmax = PL/4
Frequently Asked Questions
How accurate is this calculator?
Results are based on standard engineering formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, kPa) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.