Water Saturation Calculator

Calculate water saturation (relative humidity) based on temperature and dew point using the Magnus formula.

Input Parameters

Calculation Results

Relative Humidity (%)

Calculation Formula

Relative Humidity = 100 × (es / e)

Where:
es = Saturation vapor pressure at temperature T
e = Saturation vapor pressure at dew point Td
es = 6.112 × exp(17.67 × T / (T + 243.5))
e = 6.112 × exp(17.67 × Td / (Td + 243.5))

Water Saturation Calculator Calculator Usage Guide

Learn how to use the Water Saturation Calculator and its working principles

How to Use the Calculator

  1. Enter the current temperature in degrees Celsius (°C).
  2. Enter the current dew point temperature in degrees Celsius (°C).
  3. Click the "Calculate" button to compute the relative humidity.
  4. The result will be displayed as a percentage.

Working Principle

This calculator uses the Magnus formula to calculate relative humidity based on temperature and dew point. The formula is based on the saturation vapor pressure of water at different temperatures.

Practical Applications

Relative humidity is an important parameter in various fields:

  • Weather forecasting
  • HVAC (Heating, Ventilation, and Air Conditioning) systems
  • Industrial processes requiring controlled humidity
  • Comfort in living and working spaces

Important Notes

The accuracy of the calculation depends on the accuracy of the input values. The Magnus formula provides good accuracy for temperatures between -30°C and +50°C.