Engineering Calculators

Beams, stress, gears, pumps, flow, tolerance and thermal loads.

16 calculators in this category.

Beams & structures

Beam Deflection Calculator — Calculate maximum deflection, moment and stress for a loaded beam.
Bending Stress Calculator — Find bending stress from moment and section, and check it against yield.
Moment of Inertia Calculator — Calculate second moment of area, section modulus and radius of gyration.

Safety Factor Calculator — Calculate factor of safety, allowable stress or the load a design can take.
Stress and Strain Calculator — Calculate axial stress, strain, elongation and Young’s modulus.
Thermal Expansion Calculator — Calculate how much a part grows with temperature, and the stress if it cannot.

Belt Length Calculator — Calculate belt length, wrap angle and speed ratio for a two-pulley drive.
Bolt Torque Calculator — Calculate tightening torque and clamp load for a bolted joint.
Column Buckling Calculator — Find the Euler critical buckling load and slenderness ratio for a column.
Heat Transfer Calculator — Calculate conductive heat flow through a wall, and its R and U values.
Hydraulic Cylinder Calculator — Calculate cylinder force, speed and flow demand from bore and pressure.
Pipe Flow Calculator — Convert between flow rate, velocity and pipe size using continuity.
Pressure Drop Calculator — Calculate friction pressure loss along a pipe using Darcy–Weisbach.
Pump Power Calculator — Calculate hydraulic, shaft and motor power for a pump duty.
Reynolds Number Calculator — Determine whether flow is laminar or turbulent from the Reynolds number.
Spring Rate Calculator — Calculate the rate, force and stress of a helical compression spring.