Bending Stress Calculator
Calculate bending stress (flexural stress) in beams using the flexure formula. Compare with allowable stress for design compliance.
Bending Parameters
lb-in
Enter moment in pound-inches (ft-lb × 12)
in
in&sup4;
psi
Bending Stress (σ)
600.00 psi
0.600 ksi | 4.14 MPa
ADEQUATE
Utilization: 2.5% | Safety Factor: 40.00
Bending Stress
600.00 psi
Allowable Stress
24000 psi
Utilization
2.5%
Required Section Modulus
2.08 in³
Flexure Formula
The bending stress at any point in a beam cross-section is calculated using:
σ = Mc/I = M/S
Where: M = bending moment, c = distance from neutral axis, I = moment of inertia, S = section modulus
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.