Compute water saturation vapor pressure from temperature using the Antoine equation (mmHg and kPa).
The Vapour Pressure of Water Calculator is a free online tool that helps you quickly compute values related to vapour pressure of water. Compute water saturation vapor pressure from temperature using the Antoine equation (mmHg and kPa).
This calculator is part of our Chemistry category, which includes hundreds of specialized tools for chemistry-related calculations.
Simply enter your values in the fields above and click "Calculate" or watch the results update automatically as you type. All calculations are performed instantly in your browser — no data is sent to any server.
This tool is commonly used alongside other chemistry calculators. Browse our full collection of Chemistry calculators to find more tools that can help with your chemistry calculations.