A: No free download, but the academic license price is already heavily subsidized.
: Uses formulation models highly comparable to REFPROP. 2. REFPROP mini Cost : Free. Source : Official NIST offering.
is the industry-standard software for calculating the thermodynamic and transport properties of industrially important fluids and their mixtures . Because it is an essential tool for chemical engineers, mechanical engineers, and researchers, many users frequently search for terms like "refprop 10 free download 2021" hoping to find a cracked, nulled, or free version of this powerful database.
: Websites offering "free cracked" versions often bundle malware, spyware, or viruses. refprop 10 free download 2021
Includes Water, CO2, Nitrogen, Oxygen, Methane, Propane, Helium, Hydrogen, and Dodecane.
If you’re a student or employee, your institution may already have a site license. Ask your lab manager or library.
: Users moving from version 9.x to 10.x can purchase an upgrade for $125.00 . A: No free download, but the academic license
Remember: NIST charges fairly for a tool used in billion‑dollar LNG plants and HVAC designs. A paid license ensures reliable data—and your peace of mind.
It includes a restricted list of fluids (such as water, nitrogen, helium, and R134a).
DWSIM: A free, open-source chemical process simulator that includes built-in property packages for engineering calculations. Conclusion REFPROP mini Cost : Free
| Software | Cost | Key Features | Best For | | :--- | :--- | :--- | :--- | | | $325 (new) / $125 (upgrade) | * ~147 pure fluids * Predefined & custom mixtures * NIST's absolute highest precision | Professionals and organizations that require NIST-certified accuracy for all available fluids. | | Mini-REFPROP | Free | * Limited set of fluids & mixtures * Ideal for learning REFPROP basics | University professors for classroom demonstrations; students learning thermodynamics. | | CoolProp | Free (Open-Source) | * Extensive fluid database * Very high accuracy * Large, active user community | Students, researchers, and engineers needing a capable, free, and open-source solution. |
Fortunately, engineers, students, and researchers can access the exact same NIST thermodynamic data and models legally and entirely for free through open-source alternatives. Why You Should Avoid Cracked Versions of REFPROP 10
It is a commercial product priced by NIST at $325.00 for a single-user license as of 2026.
NIST REFPROP (Reference Fluid Properties) is the gold standard software for calculating the thermodynamic and transport properties of industrially important fluids and their mixtures. Engineers, researchers, and scientists rely heavily on this tool for accurate fluid data.