Section Modulus Calculator
Calculate elastic and plastic section modulus for solid rectangular or I-beam cross-sections.
How to Use the Section Modulus Calculator
- Enter flange width in mm.
- Enter total section depth in mm.
- Enter flange and web thickness (0 for solid rectangle).
- Review Ix, Sx, and Zx values.
使用场景
- •Steel I-beam selection
- •Timber beam capacity check
- •Reinforced concrete section analysis
公式
Solid: Sx = bh²/6, Zx = bh²/4; I-beam computed from flanges and web
常见问题
How accurate is this calculator?
Results are based on standard engineering formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, kPa) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.