Steam Tables Online

Calculate Thermodynamic and Transport Properties of Water and Steam

Steam Tables Calculator Features:

1. Steam Tables (IAPWS-IF97) - Industrial Formulation
2. Steam Tables (IAPWS-95) - Scientific Formulation
3. Gas Tables (properties of combustion gases)
  • No installation required;
  • Always work with the latest version;
  • Access it anytime from any computer in the world;
  • Accurate and easy to use;
  • Mollier diagrams (SI and English Units)
  • Full support for mobile platforms such as iPad, iPhone, iPod Touch etc...
  • Save data to Excel.

Steam Tables Calculator v7.0 released <- NEW

Improved user experience (see right column below).
Optimized for latest browsers Chrome 25.0+, FF 20.0+, IE 9.0+, Safari 5.1.2+, Opera 15.0+.
Premium features require registration.

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Steam Tables Anywhere

Steam Tables on iPad, Laptop and iPod

Access Steam Tables Calculator anywhere, anytime, from any computer, tablet or smarthphone.


Scientific Formulation based on IAPWS-95

The Steam Tables Calculator also includes implementation for calculation of thermodynamic and transport properties of water and steam based on the Scientific Formulation IAPWS-95.

This is the most accurate formulation for calculating properties of water and steam available today.

Range of Validity:
  • Melting / Sublimation curve <= T <= 5000 K       p <= 100000 MPa

Steam Tables p-h Diagram

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Recomended browsers

For the best performance use the latest version of your favourite browser
(Chrome 25.0+, FF 20.0+, IE 9.0+, Safari 5.1.2+, Opera 15.0+).

Steam Tables

The site provides a feature rich, professional quality Steam Tables web application.

The "Steam Tables Calculator" supports the following formulations for calculation of properties of water and steam:
  • "IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam (IAPWS-IF97)".
  • "IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use
For transport properties calculations are based on the latest internationally accepted equations also available from IAPWS.

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Gas Tables

The "Gas Tables Calculator" calculates caloric properties of moist air and undissociated combustion gases from 200 K up to 3300 K. It also provides a dissociation model which enables calculation of caloric properties of dissociated combustion gases at temperatures up to 2000 K, assuming complete combustion with λ > 1.05.

The model is based on the new set of equations for technical applications, called:
  • "Thermodynamic Property Models for Moist air and Combustion Gases".
The formulation was developed by D. Bücker, R. Span and W. Wagner, and presented in the "Journal of Engineering for Gas Turbines and Power" (January 2003).

User settings

The following user settings, from the last session, are now automaticaly restored:
  • Units
  • Theme
  • Setup Panel visibility
  • Output Panel visibility
  • Registered users can select a new option during Login process, to be automaticaly logged-in in the future
The new features are available only for modern browsers: IE 8+, FF 3.5+, Safari 4.0+, Chrome 4.0+, Opera 10.5+.

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(computer generated translation):

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