Example engineering calculations
Worked, unit-aware calculation worksheets across structural, mechanical, electrical and more. Open any example into your own workspace to edit and reuse.
315 examples
ASME B31.8 Pipe Wall Thickness Calculation
Calculating the minimum wall thickness of a pipe in accordance with ASME B31.8
Beam Deflection Check
Calculating the deflection of a simply supported beam
Bolt Stiffness Calculation
Calculating stiffness of bolt and joint
Cable Size Calculator
DNV-RP-F112 HISC Calculation
Calculate stresses in a pipe in accordance with DNV-RP-F112
Heat Loss through a Wall
Calculating heat loss through a wall
Pressure Drop in a Pipe
Calculating the pressure drop in a pipe
Pressure Vessel Wall Thickness Calculator
Calculating the required wall thickness for a pressure vessel
Projectile Motion Calculator
Calculating the range of a projectile
Pump Power Estimate
Estimating the power of a pump
Second Moment of Area
Shaft Torque and Power Calculator
Calculating the power and torque of a shaft
Simply Supported Beam Deflection (UDL)
Maximum mid-span deflection and bending stress of a simply supported beam under a uniformly distributed load.
Simply Supported Beam UDL
Simply Supported Beam under uniform distributed load
Slender Column Buckling
Voltage Drop Calculator
Calculate the voltage drop in a wire
Cantilever Beam Deflection (End Point Load)
Tip deflection and root bending stress of a cantilever beam loaded by a point force at its free end.
Axial Stress and Elongation of a Rod
Normal stress, strain and total elongation of a straight bar under an axial tensile load.
Euler Buckling Load of a Column
Critical elastic buckling load and stress of a slender column from the Euler formula.
Bolted Joint Shear Stress
Average shear stress in a bolted/riveted connection and the factor of safety against an allowable shear.
Torsion of a Circular Shaft
Maximum shear stress and angle of twist in a solid circular shaft transmitting torque.
Helical Compression Spring Rate
Spring rate (stiffness) and deflection of a round-wire helical compression spring.
Reynolds Number for Pipe Flow
Reynolds number for flow in a circular pipe to classify laminar versus turbulent flow.
Darcy–Weisbach Pipe Head Loss
Friction head loss along a pipe run using the Darcy–Weisbach equation.