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

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)

Fill in the required fields to see your result.

Civil

Retaining Wall Pressure Calculator

Computes the Rankine active lateral earth pressure resultant acting on a retaining wall based on soil height, unit weight, and internal friction angle. Essential for structural design of basement walls, highway cuts, and embankments.

Wall Height (m)

Soil Unit Weight (kN/m³)

Soil Friction Angle (degrees)

Fill in the required fields to see your result.

Key differences

	Beam Deflection Calculator	Retaining Wall Pressure Calculator
Category	Civil	Civil
Inputs required	4	3
Result	Maximum Deflection (mm)	Lateral Earth Pressure (kN/m)
What it does	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.	Computes the Rankine active lateral earth pressure resultant acting on a retaining wall based on soil height, unit weight, and internal friction angle. Essential for structural design of basement walls, highway cuts, and embankments.