Calculator

Beam Deflection Estimate

Uniform-load beam deflection estimate for early engineering checks.

Interactive visual

Move cursor to inspect

Estimate visuals adapt to your loading and geometry inputs.

Input Console

Tuned defaults are preloaded and results refresh automatically as you edit.

Unit System *

Choose the option that matches your job setup.

Support Type *

Choose the option that matches your job setup.

Uniform Load *

Typical start: 1200 kN/m or lb/ft. Accepted range: >= 0.01 kN/m or lb/ft. This value is validated before calculation.

kN/m or lb/ftRange >= 0.01 kN/m or lb/ftDefault 1500

Span *

Typical start: 30 m or ft. Accepted range: >= 0.1 m or ft. This value is validated before calculation.

m or ftRange >= 0.1 m or ftDefault 30

Elastic Modulus *

Typical start: 29000000 GPa or psi. Accepted range: >= 0.1 GPa or psi. This value is validated before calculation.

GPa or psiRange >= 0.1 GPa or psiDefault 29000000

Moment of Inertia *

Accepted range: >= 0.001 cm⁴ or in⁴. This value is validated before calculation.

cm⁴ or in⁴Range >= 0.001 cm⁴ or in⁴Default 500