Enter the temperature in Celsius into the calculator below to determine the water vapor pressure.

## Water Vapor Formula

The following formula is used to calculate the saturate water vapor pressure.

P = 0.61*e^{(18.68-T/234.5)*(T/(257.14+T)}

- Where P is the saturated vapor pressure (kPA)
- T is the temperature (C)

## Water Vapor Pressure Definition

A water vapor pressure is the pressure required in order for the water vapor in the air to be at equilibrium.

## Water Vapor Pressure Example

How to calculate water vapor pressure?

**First, measure the temperature of the air.**If necessary, convert the temperature into units of Celsius.

**Next, enter the temperature into the formula.**Calculate the water vapor pressure using the temperature from step 1 and the formula above.

**Finally, analyze the results.**Do the results make logical sense? If so, you have your answer, if not, check the calculation.

## FAQ

**What is water vapor pressure?**

A water vapor pressure is the specific pressure or maximum pressure required at any given temperature for the water vapor in air to be at equilibrium.

**What is the formula for what vapor pressure?**

The following formula is used to calculate the water vapor pressure.

## Related Terms

water vapor formula |

how to calculate water vapor pressure |

water vapor pressure calculator |

water vapour formula |

water vapor chemical formula |

water vapour chemical formula |

formula of water vapour |

how to find vapor pressure of water |

antoine equation for water |

water vapor density calculator |

how to calculate vapor pressure of water |

water vapour pressure calculator |

vapor pressure of water formula |

saturation vapor pressure formula |

formula for water vapour |

chemical equation for water vapor |

vapor pressure of water equation |

how to find saturation vapor pressure |

saturated vapour pressure formula |

how to find water vapor pressure |

saturation vapour pressure equation |

saturation pressure of water calculator |

molecular formula of water vapour |

formula of water vapor |

water vapor chemical symbol |

how to calculate vapour pressure of water |

water vapour pressure formula |

water vapour equation |

water saturation pressure equation |

how to calculate the vapor pressure of water |

saturated vapour pressure calculator |

calculating saturation vapor pressure |

pressure of water calculator |

water vapour density calculator |

antoine equation calculator water |

find the vapor pressure of water at 29.6 c |

partial pressure of water calculator |

partial pressure of water vapor calculator |

how to calculate vapor pressure of water at a given temperature |

water vapour pressure equation |

how to find partial pressure of water vapor |

equation for saturation vapor pressure |

how to find pressure of water vapor |

saturated water vapor pressure calculator |

chemical symbol for water vapour |

chemical formula water vapor |

how to calculate partial pressure of water vapor in air |

relative humidity water content calculator |