Mechanical Engineering
Stress Calculator ⚡ σ = F / A
Calculate stress, strain, and modulus of elasticity in materials.
Force (F)
N
Applied force in newtons
Cross-Sectional Area (A)
mm²
Cross-sectional area in square millimeters
Stress (σ)
MPa
Stress in megapascals (MPa)
Strain (ε)
Strain (dimensionless, ΔL / L)
Young's Modulus (E)
MPa
Young's modulus in megapascals (MPa)
σ = F / A | E = σ / ε
Stress 0MPa
Calculated Stress
0 MPa
σ = F / A
Force (F) 0 N
Area (A) 0 mm²
Stress (σ) 0 MPa
Young's Modulus (E) 0 MPa

📊 Detailed Breakdown

Quantity Value Formula

How the formula works

σ = F / A  |  ε = ΔL / L  |  E = σ / ε
  • Stress (σ) = Force / Cross-Sectional Area
  • Strain (ε) = Change in Length / Original Length (dimensionless)
  • Young's Modulus (E) = Stress / Strain (within elastic limit)
  • Enter any two values to calculate the third
  • Units: Force (N), Area (mm²), Stress (MPa), Strain (dimensionless), Modulus (MPa)
  • 1 MPa = 1 N/mm²
  • Common materials: Steel (E ≈ 200,000 MPa), Aluminum (E ≈ 70,000 MPa)