Engineering calculator collection
Structural Engineering Calculators
Free structural calculators for stress, bending, deflection, sections, stiffness and load analysis.
Normal Stress Calculator
Calculate axial normal stress from force and cross-sectional area.
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Strain Calculator
Calculate engineering strain from extension and original length.
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Factor of Safety Calculator
Calculate factor of safety from allowable strength and working stress.
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Axial Deformation Calculator
Calculate elastic axial extension δ = FL / AE.
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Bending Stress Calculator
Calculate bending stress σ = My / I.
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Rectangular Second Moment of Area Calculator
Calculate the centroidal second moment of area of a rectangular section about its strong axis.
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Circular Second Moment of Area Calculator
Calculate the centroidal second moment of area of a solid circular section.
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Rectangular Section Modulus Calculator
Calculate elastic section modulus for a rectangular section about its strong axis.
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Simply Supported Beam Deflection — Centre Load Calculator
Maximum deflection of a simply supported beam with a concentrated load at midspan.
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Cantilever Deflection — End Load Calculator
Tip deflection of a cantilever beam under a concentrated end load.
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Simply Supported Beam Deflection — UDL Calculator
Maximum deflection of a simply supported beam under a uniformly distributed load.
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Euler Buckling Load Calculator
Estimate the elastic critical buckling load of a slender column.
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Solid Shaft Torsional Stress Calculator
Maximum torsional shear stress in a solid circular shaft.
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Solid Shaft Angle of Twist Calculator
Elastic twist of a solid circular shaft under torque.
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Bearing Stress Calculator
Average bearing stress at a pin, bolt or fastener interface.
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