Which vapor pressure formula should I use for water between 0 and 100 degrees Celsius?

The Antoine formula is the most often-used and recommended option for the standard 0–100 °C range, as it provides reliable results for this temperature interval.

Can this calculator determine vapor pressure for temperatures below freezing?

Yes, the tool works for temperatures below the freezing point and also for extremes above 100 °C, providing results for both water and ice phases.

What is vapor pressure and why does it change with temperature?

Vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature. It increases with temperature because more molecules gain enough energy to escape from the liquid or solid state into the vapor phase.

Does the calculator show vapor pressure for ice as well as liquid water?

The calculator can determine vapor pressure for both water and ice, covering temperatures across the full range including below the freezing point.

ChemistryFree Tool

Vapor Pressure of Water Calculator

Provided byOmni Calculatoromnicalculator.com

With this vapor pressure of water calculator, you can find the vapor pressure at a particular temperature according t...

Use This Tool

Chemical thermodynamics calculators

Screenshot of Vapor Pressure of Water Calculator on Omni Calculator — omnicalculator.comOpen the live tool →

About this tool

What Vapor Pressure of Water Calculator does

The Vapor Pressure of Water Calculator on Omni Calculator determines the vapor pressure of water and ice at any specified temperature. Users input a temperature value, and the tool outputs the corresponding vapor pressure using one of five distinct formulas. It covers the standard 0–100 °C range as well as extreme temperatures above 100 °C and below the freezing point, providing results for both liquid water and ice phases. The calculator also includes a definition of vapor pressure and explanations of the available formulas, making it useful for quick reference or educational purposes in chemistry contexts.

Step by step

How to use the Omni Calculator Vapor Pressure of Water Calculator

1
Open the Vapor Pressure of Water Calculator on Omni Calculator
2
Enter the desired temperature in the input field
3
Select the preferred vapor pressure formula from the available options (Simplified, Antoine, Magnus, Tetens, or Buck)
4
View the calculated vapor pressure result displayed in the output field
5
Use the 'Share result' or 'Clear all' functions as needed to manage your calculations

Is it right for you

Best for

Students, educators, or professionals needing quick vapor pressure calculations across a wide temperature range without manually applying complex formulas.

Limitations

Results are estimates based on selected formula parameters
Interface includes promotional content and ads on the hosting site
No option to convert between different pressure units within the tool

Questions

Vapor Pressure of Water Calculator FAQ

Which vapor pressure formula should I use for water between 0 and 100 degrees Celsius?: The Antoine formula is the most often-used and recommended option for the standard 0–100 °C range, as it provides reliable results for this temperature interval.
Can this calculator determine vapor pressure for temperatures below freezing?: Yes, the tool works for temperatures below the freezing point and also for extremes above 100 °C, providing results for both water and ice phases.
What is vapor pressure and why does it change with temperature?: Vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature. It increases with temperature because more molecules gain enough energy to escape from the liquid or solid state into the vapor phase.
Does the calculator show vapor pressure for ice as well as liquid water?: The calculator can determine vapor pressure for both water and ice, covering temperatures across the full range including below the freezing point.

Keep Exploring

Similar tools

Based on shared tags

Entropy Calculator

Calculates entropy changes for chemical reactions using fundamental thermodynamic principles. The tool provides estimates of isothermal entropy change for ideal gases, allowing users to determine reaction spontaneity by employing formulas related to Gibbs free energy. It processes inputs based on standard chemical equations and physical constants to yield a quantitative measure of the system's disorder or randomness during a transformation. Students and researchers in chemistry and physical science utilize this resource to analyze thermodynamic feasibility. Professionals needing to understand the energetic parameters of reactions can use it to predict if a reaction will occur spontaneously under given conditions. It serves as an essential aid for academic study, experimental verification, and preliminary theoretical work involving chemical kinetics or equilibrium analysis.

1 option⚗️ Chemistry

Gibbs' Phase Rule Calculator

Calculates the number of degrees of freedom in a system using Gibbs' phase rule, given the number of components and phases. It applies the equation to determine the number of independent variables that can be changed without changing the state of the system. Scientists and engineers in chemistry and materials science use it to understand the stability and behavior of different states of matter under varying conditions, aiding in research and development processes.

1 option⚗️ Chemistry

Heat of Combustion Calculator

Calculates the heat released during combustion processes by entering chemical formulas. The tool uses stoichiometry to determine the amount of heat produced based on standard heats of formation for each element in the reaction. Scientists, engineers, and students studying chemistry or related fields use this calculator to estimate energy outputs in fuel combustion, understand reaction thermodynamics, and design more efficient engines and industrial processes.

1 option⚗️ Chemistry

Boiling Point Elevation Calculator

Calculates the change in boiling point of a solution based on solute concentration using the boiling point elevation formula. Enter the molality and the boiling point elevation constant for the solvent to get the new boiling point. Scientists, engineers, and students studying chemistry or materials science would use this tool to understand how impurities affect the boiling point of liquids, aiding in processes like purification and separation techniques.

1 option⚗️ Chemistry

Q10 Calculator

Calculates the rate of reaction changes due to temperature variations using the Q10 formula. Users input initial and final temperatures along with the reaction's rate at one temperature, and the calculator computes how many times faster or slower the reaction will proceed at the other temperature. This is particularly useful for chemists studying enzyme kinetics and biochemistry, as well as in environmental science to understand how temperature impacts chemical reactions in ecosystems. Helps users quickly estimate reaction rates under different temperatures without complex calculations, aiding in research, educational demonstrations, and practical applications in fields requiring precise control over chemical processes.

1 option⚗️ Chemistry

STP Calculator (Standard Temperature and Pressure)

Calculates the volume and number of moles for various substances under standard temperature and pressure conditions. This online chemistry tool simplifies complex calculations related to molar volume, allowing users to determine how much space or how many units of a substance exist when measured at standardized physical parameters. Simply input the necessary chemical information into the calculator interface, and it processes the data instantly to provide accurate stoichiometric results based on accepted scientific formulas. Students studying general chemistry, science educators designing lab exercises, and researchers needing quick preliminary calculations benefit from this resource. It serves as a reliable aid for verifying theoretical measurements or understanding gas laws without requiring manual calculation using physical equations.

1 option⚗️ Chemistry