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
Torque from a Force at an Angle
Torque (moment) of a force applied at an angle to a lever arm.
Moment of a Force
Turning moment of a force about a pivot from its perpendicular distance.
Work–Energy Theorem
Work done on a body equal to its change in kinetic energy.
Centre of Mass of Two Bodies
Centre of mass of two point masses along a line.
Coefficient of Restitution
Coefficient of restitution of a collision from approach and separation speeds.
Motor Torque from Power
Output torque of a motor from its mechanical power and speed.
Generator Peak EMF
Peak EMF of a rotating coil generator.
Force on a Current-Carrying Conductor
Force on a conductor carrying current in a magnetic field.
Solenoid Magnetic Field
Magnetic flux density inside a long solenoid.
Capacitor Charge
Charge stored on a capacitor at a given voltage.
AC Impedance Magnitude
Magnitude of impedance of a series resistance and reactance.
Resistor Power Dissipation (I²R)
Power dissipated in a resistor from the current through it.
Charge from Current
Electric charge transferred by a steady current over time.
Resistance Change with Temperature
Resistance of a conductor at a new temperature via its temperature coefficient.
Wheatstone Bridge Balance
Unknown resistance from a balanced Wheatstone bridge.
Isothermal Compressor Work
Work to compress a gas isothermally from one pressure to another.
Pump Overall Efficiency
Overall efficiency of a pump from its hydraulic and shaft power.
Velocity Head
Velocity head (kinetic energy per unit weight) of a flowing fluid.
Mass Flow Through a Nozzle
Mass flow rate through a nozzle from density, area and velocity.
Venturi Meter Flow Rate
Flow rate from the pressure drop across a venturi meter.
Stirred-Tank Mixing Power
Power drawn by an impeller in a stirred tank from the power number.
Particle Settling Velocity (Stokes)
Terminal settling velocity of a small particle in a fluid by Stokes’ law.
Volumetric Thermal Expansion
Change in volume of a liquid or solid from a temperature change.
Flat-Plate Reynolds Number
Reynolds number for flow over a flat plate from the plate length.