Steam Tables provides the thermodynamic properties of water and steam. Given any two known properties (pressure, temperature, enthalpy, entropy, or specific volume) the exact state of water can be determined. In cases where only pressure or temperature are known, saturation conditions will be returned. The specific points are displayed on a T-S diagram. These points may be connected to identify a process. The changes in state from one point to another are then provided by the process lines.Results can be displayed in US or metric units. You can also convert the displayed (or input) values between the two systems of units.