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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

Concrete Volume Calculator

Estimate the in-place concrete volume for slabs, footings, walls, and other rectangular structural elements using V = L × W × T. The geometric volume in cubic metres — add 5–10% waste before placing the order.

Length (m)

Width (m)

Thickness (m)

Fill in the required fields to see your result.

Key differences

	Beam Deflection Calculator	Concrete Volume Calculator
Category	Civil	Civil
Inputs required	4	3
Result	Maximum Deflection (mm)	Concrete Volume Required (m³)
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.	Estimate the in-place concrete volume for slabs, footings, walls, and other rectangular structural elements using V = L × W × T. The geometric volume in cubic metres — add 5–10% waste before placing the order.