Use our fog calculator tool to accurately determine the visibility range in foggy conditions.
Fog Calculator
How to Use: Enter the temperature and dew point in degrees Celsius and press “Calculate”. The result will indicate the fog condition based on the temperature and dew point difference.
How it Works: This calculator determines the likelihood of fog by comparing the air temperature to the dew point. Fog is likely when the difference between these values is less than 2.5 degrees Celsius.
Limitations: This calculator assumes standard atmospheric conditions. It does not account for wind speed, pressure variations, or geographic differences which may affect actual fog formation.