Use this engineering calculation for a transparent preliminary estimate or independent arithmetic check when geometry, materials, loads, operating conditions, and units are defined consistently.

Vertical Load Newtons (N)

Required number input.

Footprint Square Meters (m²)

Required number input.

Average contact pressure from a centered vertical load divided by foundation footprint area; no eccentricity or soil capacity check. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Pressure Pascals (Pa)

The resulting pressure pascals returned as a number.

• Soil pressure, bearing, permeability, and consolidation results depend on stratigraphy, drainage, stress history, groundwater, sampling, laboratory method, anisotropy, construction sequence, and failure mechanism. Site investigation and code-specific factors are essential.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check assumptions against drawings, measurements, current material data, and the applicable design code. Apply required load combinations and safety factors, then obtain qualified review and testing for consequential designs.

• Bolt Group Shear

  Average direct shear force per bolt for a concentric load shared equally by identical bolts; excludes eccentricity and prying.

• Euler Buckling Load

  Ideal Euler elastic buckling load π²EI/(KL)² for a slender prismatic column; not a design capacity or inelastic check.

• Forging Force Approx

  First-pass forging force from projected contact area, average flow stress and a supplied dimensionless shape/friction factor.