Mechanical Engineering Calculators

Mechanical Calculators
Force Calculator
Work Done Calculator
Power Calculator
Stress & Strain Calculator
Young’s Modulus Calculator
Torque Calculator
Moment of Inertia Calculator
Beam Deflection Calculator
Shear Force & Bending Moment Calculator
Factor of Safety Calculator
Ideal Gas Law Calculator
Thermal Expansion Calculator
Heat Transfer – Conduction Calculator
Heat Transfer – Convection Calculator
Specific Heat Calculator
Entropy Change Calculator
Carnot Efficiency Calculator
Thermodynamic Cycle Efficiency Calculator
Refrigeration COP Calculator
Steam Table Interpolation Tool
Bernoulli’s Equation Calculator
Continuity Equation Calculator
Reynolds Number Calculator
Friction Factor Calculator
Hydraulic Radius Calculator
Flow Rate Calculator
Pump Power Calculator
Cavitation Number Calculator
Drag Force Calculator
Shaft Diameter Calculator
Key Design Calculator
Spring Design Calculator
Gear Ratio & Speed Calculator
Belt Drive Calculator
Bearing Life Calculator
Bolt Size & Preload Calculator
Flywheel Energy Calculator
Cam Profile Calculator
Chain Drive Pitch Calculator
Cutting Speed & Feed Rate Calculator
Machining Time Calculator
Tool Life Calculator
Welding Heat Input Calculator
Hardness Conversion Calculator
Casting Shrinkage Allowance Calculator
Material Density Calculator
Thermal Conductivity Comparator
Fatigue Life Estimator
Composite Laminate Calculator
Air Conditioning Load Calculator
Cooling Tower Effectiveness Calculator
Duct Sizing Calculator
Fan Power Calculator
Solar Panel Efficiency Calculator
Wind Power Calculator
Energy Conversion Efficiency Calculator
Boiler Efficiency Calculator
Radiative Heat Transfer Calculator
Evaporator/Condenser Load Calculator

Welcome to the ultimate hub for free mechanical engineering calculators – designed for students, engineers, educators, and enthusiasts!

we believe that complex calculations shouldn’t be a barrier to innovation. Whether you’re solving classroom problems, working on industrial design, or brushing up on the basics, our tools are built to save time, reduce errors, and make engineering easier.

Why Use Our Calculators?

  • Absolutely Free – No subscriptions, no hidden fees.
  • Mobile-Friendly – Access anytime, anywhere, from any device.
  • Engineered for Accuracy – Based on standard formulas, physics laws, and design principles.
  • Perfect for Learning – Ideal for college students and professionals brushing up on core concepts.

Categories We Cover

  • Engineering Mechanics – Work, Power, Torque, Moment of Inertia, Stress & Strain, Young’s Modulus, Factor of Safety, Beam Deflection, etc.
  • Thermodynamics & Heat Transfer – Ideal Gas Law, Carnot Efficiency, Thermal Expansion, Conduction & Convection Calculators, COP, Entropy, and more.
  • Fluid Mechanics – Bernoulli’s Equation, Continuity, Reynolds Number, Head Loss, Flow Rate, Pump Power, Drag Force, etc.
  • Machine Design – Shaft Diameter, Spring & Key Design, Gear Ratio, Flywheel Energy, Bearing Life, Bolt Load, and others.
  • Manufacturing & Material Science – Cutting Speed, Machining Time, Tool Life, Casting Shrinkage, Hardness Conversion, Welding Calculators.
  • HVAC & Energy Systems – Air Conditioning Load, Solar & Wind Power, Cooling Towers, Duct Sizing, Boiler Efficiency.
  • Advanced Tools – Fatigue Life Estimators, Composite Laminate Calculators, Cam Profile Tools, and more.

Each calculator is designed with clarity and simplicity in mind – just enter the required values, hit calculate, and you get instant results.


Bookmark this page and use it as your go-to resource for mechanical engineering calculations. Whether you’re at the shop floor or in a study session, our tools are here to help – fast, free, and reliable.

Empowering Engineers. Simplifying Calculations. Fueling Innovation.