Tools

EngiRef

Engineering tools that run locally in the browser, with exportable results and no server-side calculation dependency.

Formula solver

Stress is force per unit area acting on a material

Force (N)Area (m²)

σ = 1 Pa (direct solve)

\sigma = \frac{F}{A}

0.001 km

Speed of Light in Vacuumc = 2.9979e+8 m/s

Planck Constanth = 6.6261e-34 J·s

Reduced Planck Constantℏ = 1.0546e-34 J·s

Elementary Chargee = 1.6022e-19 C

Avogadro's ConstantNᴀ = 6.0221e+23 1/mol

Gravitational ConstantG = 6.6743e-11 N·m²/kg²

Fine Structure Constantα = 0.007297

Vacuum Permittivityε₀ = 8.8542e-12 F/m

Normal Stress\sigma = \frac{F}{A}

Normal Strain\varepsilon = \frac{\Delta L}{L_0}

Hooke's Law\sigma = E \varepsilon

Shear Stress\tau = \frac{V}{A}

Torque\tau = F \cdot r

Moment of Inertia (Rectangle)I = \frac{bh^3}{12}

Moment of Inertia (Circle)I = \frac{\pi d^4}{64}

Newton's Second LawF = ma

Kinetic EnergyKE = \frac{1}{2}mv^2

Gravitational Potential EnergyPE = mgh

Power (Work/Time)P = \frac{W}{t}

Power (Rotational)P = \tau \omega