An Excel add-in that provides access to NIST’s REFPROP (Reference Fluid Thermodynamic and Transport Properties) database and calculation routines directly within spreadsheets.
REFPROP

- Excel
- Aerospace, Chemistry, Fluid Dynamics, Simulation, Thermodynamics
- Chemical Recycling, Design for Additive Manufacturing (DfAM), Design for Manufacturing (DfM), Environmental Engineering, Fluid Mechanics, Process Optimization, Sustainability Metrics, Thermodynamics
Features:
- High-accuracy thermophysical properties for pure fluids and mixtures, phase equilibria (VLE, LLE, SLE), transport properties (viscosity, thermal conductivity), equations of state, unit conversions, supports a wide range of industrial fluids and refrigerants
Pricing:
- Paid
- Provides highly accurate, reference-quality thermodynamic and transport property data, widely used in industry and research, essential for many engineering calculations involving fluids.
- Commercial software (REFPROP itself), requires REFPROP license and installation, function calls can be complex, primarily for users needing high-accuracy thermophysical properties.
Best for:
- Engineers and scientists in chemical, mechanical, and aerospace engineering who require high-accuracy thermodynamic and transport properties of fluids for design, analysis, and research, using the NIST REFPROP database.