Structural Calculators
All calculators support Eurocode and ACI, with both SI and Imperial unit systems. Free tools require no login. Pro tools require a free account.
Beam Calculator
Reactions, shear force diagram, bending moment diagram and deflection for any beam type and loading.
Unit Converter
Convert force, moment, stress, pressure, length and distributed loads between SI and Imperial units instantly.
Rebar Calculator
Calculate rebar areas, number of bars and spacing for any diameter. Supports EC and ACI bar designations.
RC Beam Design
Complete flexure, shear and serviceability design per EC2 and ACI 318-19.
RC Slab Design
One-way and two-way slab design with moment coefficients per EC2 and ACI.
RC Column Design
Axial and biaxial bending design with interaction diagram per EC2 and ACI.
Section Properties
Area, moment of inertia, section modulus for standard and custom sections.
Seismic Base Shear
Equivalent static lateral force method per EC8 and ASCE 7. Includes site class and response spectrum.
Wind Load Calculator
Wind pressure and force on structures per EN 1991-1-4 and ASCE 7-22.