Stress / Strain Calculator
σ = F/A, ε = ΔL/L, Young’s modulus
σ = F/A · ε = ΔL/L · E = σ/ε
📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Stress / strain calculator
Calculate stress, strain, Young's modulus for material testing.
How to use this tool
- 1
Enter force + area
For stress calculation (σ = F/A).
- 2
Enter length change + original length
For strain (ε = ΔL/L).
- 3
See Young’s modulus
E = σ / ε, material stiffness.
Frequently Asked Questions
Young's modulus values
Steel: 200 GPa. Aluminum: 70 GPa. Copper: 110 GPa. Concrete: 30 GPa. Wood: 10-14 GPa. Rubber: 0.01-0.1 GPa.
Units
Stress: Pa (N/m²), MPa, GPa, psi. Strain: dimensionless (often ×10⁻³ or %). Young’s modulus: same as stress.
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