Frost Point Calculator

This calculator determines the frost point temperature of air based on its relative humidity and current temperature. The frost point is the temperature to which air must be cooled at constant pressure to become saturated with water vapor, causing frost to form.

Input Parameters

Calculation Results

Calculation Results

Frost Point: -- °C

Calculation Formula:

Frost Point = T₂ = T₁ - (100 - RH) * (T₁ - T₂) / 80

Where:
T₁ = Current Temperature (°C)
RH = Relative Humidity (%)
T₂ = Frost Point Temperature (°C)

Frost Point Calculator Usage Guide

Learn how to use the Frost Point Calculator and understand its importance in various applications

What is the Frost Point?

The frost point is the temperature to which air must be cooled at constant pressure to become saturated with water vapor, causing frost to form. It's different from the dew point, which is the temperature at which water vapor condenses into liquid water.

How to Use This Calculator

  1. Enter the current temperature of the air in degrees Celsius.
  2. Enter the relative humidity of the air as a percentage.
  3. Click the "Calculate" button to determine the frost point.
  4. The calculator will display the frost point temperature and show the formula used for the calculation.

When to Use This Calculator

The frost point calculator is useful in various fields:

  • Agriculture: To predict frost formation and protect crops.
  • Aviation: To determine the likelihood of ice formation on aircraft.
  • Climate Science: To study moisture content in the atmosphere.
  • Industrial Processes: To control humidity in manufacturing environments.
  • Heating and Air Conditioning: To design systems that prevent condensation and frost.

Example Calculation

If the current temperature is 5°C with a relative humidity of 80%, the frost point would be approximately -6.25°C. This means that if the air were cooled to -6.25°C at constant pressure, it would be saturated with water vapor and frost would begin to form.