GeoTechHub Bearing Capacity Calculator

Advanced preliminary shallow foundation bearing capacity calculator with multiple classical methods, eccentric loading, effective footing area, groundwater correction, contact pressure graphics, sliding check, and optional elastic settlement estimate.

Project and Method

Foundation Geometry

Loads

Soil and Groundwater Parameters

Sliding and Settlement Options

Running calculation…

Formula Reference

Bearing Capacity: qult = cNcscdcic + qNqsqdqiq + 0.5γB'Nγsγdγiγ

Net Ultimate: qult,net = qult,gross - q

Allowable: qallow = qult / FS

Eccentricity: ex = |My| / P, ey = |Mx| / P

Effective Dimensions: B' = B - 2ex, L' = L - 2ey

Corner Pressure: qcorner = P/(BL) ± 6Mx/(BL²) ± 6My/(LB²)

Sliding: FS = (P tan δ + ca A) / H