1. What is Dew Point?

The dew point is the temperature to which air must be cooled to become saturated with water vapor. When cooled further, the airborne water vapor will condense to form liquid water (dew).

2. How Does the Calculator Work?

The calculator uses the dew point approximation formula:

Where:

• \( T \) — Air temperature (°C)
• \( RH \) — Relative humidity (%)
• \( T_{dew} \) — Dew point temperature (°C)

Explanation: This simple approximation works reasonably well when RH > 50%. For more precise calculations, more complex equations are needed.

3. Importance of Dew Point Calculation

Details: Dew point is important for weather forecasting, industrial processes, preventing condensation in buildings, and understanding human comfort levels.

4. Using the Calculator

Tips: Enter temperature in °C and relative humidity in % (0-100). The calculator will estimate the dew point temperature.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between dew point and humidity?
A: Relative humidity depends on temperature, while dew point is an absolute measure of moisture in the air.

Q2: When does dew form?
A: Dew forms when the temperature drops to the dew point and water vapor condenses.

Q3: What's a comfortable dew point range?
A: Below 16°C (60°F) is comfortable, above 21°C (70°F) feels oppressive.

Q4: How accurate is this approximation?
A: It's within about 1°C when RH > 50%, but less accurate at lower humidity.

Q5: What are more precise dew point formulas?
A: The Magnus formula or Arden Buck equation provide more accurate results.