Thermodynamics Calculator

Thermodynamics Calculator puts 44 thermodynamics and heat-transfer calculators — plus a library of thermal engineering reference tables — in one fast, offline app for engineers and students.

Sizing a heat exchanger, checking a Carnot efficiency, or looking up the emissivity of a material? You get the formula, the result, and the reference data in seconds.

WHY ENGINEERS USE IT
• Solve for any variable — on most calculators, rearrange the formula and solve for whichever value you're missing, not just the "standard" output.
• SI and USCS (Imperial) units — switch the whole app between metric and imperial with one tap; every input, result, and unit label updates instantly.
• Reference tables built in — emissivity coefficients, thermal conductivity of common liquids and heat-exchanger materials, radiation constants, and more.
• Find it fast — search plus category filters: Heat Transfer, Thermal Expansion, Radiation, Energy & Work, Dimensionless Numbers, Properties & Tables.

WHO IT'S FOR
Mechanical, chemical, and HVAC engineers, and thermodynamics / heat-transfer students who want quick, reliable answers without digging through a textbook.

ALL 44 CALCULATORS

List of Calculators:
1. Carnot Efficiency (Carnot Cycle)
2. Eckert Number
3. Emissivity Coefficient
4. Energy Efficiency
5. Energy/Work Converter
6. Enthalpy
7. Entropy
8. Fick’s Law of Diffusion
9. Fouling Factor
10. Fourier Number
11. Heat Flow
12. Heat Storage
13. Heat Transfer Rate
14. Kinetic Energy
15. Laws of Thermodynamics
16. Lewis Number
17. Liquid Phase Diffusion Coefficient
18. Nusselt Number
19. Peclet Number
20. Potential Energy
21. Prandtl Number
22. Radiation Constant
23. Radiation Converter
24. Radiation Heat Transfer
25. Rankine Efficiency
26. Sherwood Number
27. Specific Heat Capacity Calculator
28. Specific Heat Capacity Converter
29. Stefan-Boltzmann Law
30. Surface Absorptivity
31. Temperature Converter
32. Thermal Area Expansion
33. Thermal Conductivity (Common Liquids)
34. Thermal Conductivity (Heat Exchanger Materials)
35. Thermal Conductivity Calculator
36. Thermal Conductivity Converter
37. Thermal Diffusivity
38. Thermal Expansion Converter
39. Thermal Linear & Volumetric Expansion Relationship
40. Thermal Linear Expansion
41. Thermal Resistivity
42. Thermal Transmittance
43. Thermal Volumetric Expansion
44. Work

Ideal for mechanical engineers and students!