Mollier Diagram Pro - easy HVAC simulations

Mollier Diagram for Windows and Android

"Mollier diagram Pro is the best program I have on my laptop. I use it for optimization of installations and to accurately determine whether heat wheels work correctly"

Rene Hemme,

Mollier Diagram Pro is an easy to use mollier diagram with which you can make calculations of air treatment processes. Please feel free to download the trial version of Mollier diagram Pro and find out how it can assist you in your day-to-day work. Mollier diagram Pro is available through the following options:





  • Automatic enthalpy calculation
  • English, German and Dutch versions
  • Temperature range of -25 °C to 200 °C
  • Altitude ranging from 0m to 2490m height
  • Spreadsheet to export calculations to Excel
  • HVAC calculations for heating, cooling and humidifying
  • Models for twin coil, heat wheels, crossflows and heat pumps
  • Widely used by HVAC professionals for simulations
  • all features of Mollier Diagram Pro

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About the Mollier Chart Diagram

In the graph below you find an example of a chart plotting the Mollier Diagram. This is a simple interactive version to understand the basic. Just click two times on the graphic on the colored lines and then on the Button Draw Line.

© 2019

Richard Mollier the inventor of the Mollier Diagram

Richard Mollier - invetor of the Mollier Diagram

Richard Mollier was born in Germany on 30 November in 1863. He studied mathematics, physics and mechanical engineering in München and Graz in Germany. Thereafter, he was a professor at Dresden University where he was the first to make a Graphic display of the relationship between temperature, pressure, enthalpy, entropy and volume of steam and moist air. This Mollier chart is a common tool used by engineers to theoretically predict the real life performance of their installations. Also service technician make good use of the Mollier diagram while installing or maintaining installations that cool air, heat air, steam, refrigerate, etc. Mollier work many years with his students to enhance his diagrams and works on other problems in thermodynamics,refrigeration,hydraulics and gas engines. Richard Mollier shared many copyrights of his research results with his students. In 1923 in Los Angeles on the thermodynamics congress he got a great honor, the congress decided to name all diagrams that display heat energy with one coordinate after Richard Mollier. He retired as professor in 1931 and he died on 13 march in 1935 in Dresden at the age of 72.