Engineering Calculator Classes
Browse calculators by university course. Find every tool you need for your current class — all free, no signup required.
MegaCalc organizes its engineering calculators by the undergraduate and graduate mechanical engineering courses where they are most useful. Whether you are preparing for an exam in Thermodynamics, working through a problem set in Fluid Mechanics, or reviewing core concepts from Statics and Dynamics before starting a new design project, the class pages below bring together every calculator, reference table, and formula you need — grouped by the topics your textbook covers.
Each class page links to the individual calculators in that course, along with the relevant unit converters and reference tables. Every calculator runs entirely in your browser with no signup required, supports both metric (SI) and imperial units on every input field, and includes step-by-step worked examples, formula references, and common-mistake warnings. The calculators implement standard textbook equations from widely used references (Hibbeler, Cengel, Crandall, Shigley, Bergman) and have been verified against published example problems.
The engineering curriculum is broadly divided into three pillars: solid mechanics (Statics, Dynamics, Mechanics of Materials, Vibrations), thermal sciences (Thermodynamics, Fluid Mechanics, Heat Transfer), and applied design (Machine Design, Materials Science, Manufacturing, Controls). A typical mechanical engineering degree covers all of these at increasing depth across four years. The calculators on MegaCalc span the full undergraduate curriculum and continue into graduate-level topics like advanced heat transfer, compressible flow, and finite-element preprocessing — all with the same free access and privacy guarantees as the basic tools. Students preparing for the FE (Fundamentals of Engineering) exam or PE (Professional Engineer) licensure find the calculators useful for verifying hand-calculated answers and practicing under time pressure.
Force systems, equilibrium, centroids, moments of inertia, friction, and trusses
Kinematics, kinetics, work-energy, impulse-momentum, and vibrations
Stress, strain, beam bending, torsion, column buckling, and combined loading
Ideal gas law, thermodynamic cycles, entropy, steam tables, and psychrometrics
Reynolds number, Bernoulli equation, pipe flow, pumps, open channel flow, and drag
Conduction, convection, radiation, heat exchangers, fins, and transient analysis
Shaft design, bearings, springs, fasteners, gears, welds, and fatigue analysis
Material properties, hardness conversion, thermal expansion, stress-strain analysis, and creep
Machining parameters, turning, drilling, tolerances, and surface finish
Interpolation, unit checking, significant figures, and reference tables
Transfer functions, Bode plots, root locus, PID control, stability analysis, state-space, and discrete-time systems
Normal distribution, hypothesis testing, regression, ANOVA, DOE, process capability, Weibull analysis
Free and forced vibration, isolation, critical speed, dynamic absorbers, FFT analysis, multi-DOF systems
Ohm's law, AC impedance, power calculations, RLC circuits, transformers, motors, and bridge circuits
Time value of money, NPV, IRR, depreciation, break-even analysis, loan amortization
Root finding, numerical integration, ODE solvers, curve fitting, matrix operations, interpolation
Uncertainty propagation, sensor calibration, strain gauges, thermocouples, signal analysis
Bubble/dew point, distillation, mass/energy balances, reaction kinetics, reactor sizing, packed beds, absorption columns, and vapor pressure