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Both calculators run independently — change the inputs on either side to compare results.

Soil Bearing Capacity Calculator

Estimate the ultimate bearing capacity of soil beneath a square footing using Terzaghi's general bearing-capacity equation. Foundational geotechnical design input — used with appropriate safety factors to determine maximum allowable footing loads.

Soil Cohesion (kPa)

Internal Friction Angle (degrees)

Foundation Depth (m)

Soil Unit Weight (kN/m³)

Civil

Beam Deflection Calculator

Compute the maximum mid-span deflection of a simply supported beam under a uniformly distributed load (UDL) using δ = 5wL⁴ / (384EI). The standard structural-design check for serviceability — verifies whether a beam stays within deflection limits like L/250 or L/360 under service loads.

Uniform Load (N/m)

Beam Length (m)

Modulus of Elasticity (MPa)

Moment of Inertia (cm⁴)

Key differences

	Soil Bearing Capacity Calculator	Beam Deflection Calculator
Category	Civil	Civil
Inputs required	4	4
Result	Ultimate Bearing Capacity (kPa)	Maximum Deflection (mm)
What it does	Estimate the ultimate bearing capacity of soil beneath a square footing using Terzaghi's general bearing-capacity equation. Foundational geotechnical design input — used with appropriate safety factors to determine maximum allowable footing loads.	Compute the maximum mid-span deflection of a simply supported beam under a uniformly distributed load (UDL) using δ = 5wL⁴ / (384EI). The standard structural-design check for serviceability — verifies whether a beam stays within deflection limits like L/250 or L/360 under service loads.