Steam Tables

Steam Tables is a powerful thermodynamic property calculator based on the IAPWS-IF97 international standard equations. Quickly compute water and steam properties using six flexible input combinations:

f(P, T) – from pressure and temperature
f(P, h) – from pressure and enthalpy
f(P, s) – from pressure and entropy
f(Psat, x) – from saturation pressure and quality (wet steam, saturated liquid/vapor, and two-phase regions)
f(Tsat, x) – from saturation temperature and quality (wet steam, saturated liquid/vapor, and two-phase regions)
f(h, s) – from enthalpy and entropy

Main Thermodynamic Properties: Pressure, Temperature, Enthalpy, Entropy, Vapor Fraction, Specific Volume, Internal Energy, Density, and IAPWS Region.
Additional Thermodynamic Properties: Specific Isobaric Heat Capacity (Cp), Specific Isochoric Heat Capacity (Cv), Speed of Sound, Isentropic Exponent (Kappa), and Vapor Volume Fraction.
Transport Properties: Dynamic Viscosity, Kinematic Viscosity, Prandtl Number, Surface Tension, and Thermal Conductivity.
Extra Features:

Save and manage calculation results
Visualize saved data on interactive T-s, P-h, and H-s diagrams
Support for multiple unit systems