1. What is a Dry and Wet Bulb Temperature Calculator?

Definition: This calculator estimates relative humidity using the simple approximation formula based on dry bulb and wet bulb temperature readings.

Purpose: It helps meteorologists, HVAC professionals, and weather enthusiasts determine atmospheric humidity levels.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( RH \) — Relative Humidity (percentage)
• \( T_{dry} \) — Dry bulb temperature (°C)
• \( T_{wet} \) — Wet bulb temperature (°C)

Explanation: The difference between dry and wet bulb temperatures is multiplied by 5 and subtracted from 100 to estimate relative humidity.

3. Importance of Relative Humidity Calculation

Details: Knowing relative humidity is crucial for weather forecasting, indoor climate control, industrial processes, and human comfort assessment.

4. Using the Calculator

Tips: Enter both dry and wet bulb temperatures in Celsius. Wet bulb temperature must be equal to or lower than dry bulb temperature.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this approximation?
A: It provides a rough estimate. For precise measurements, use psychrometric charts or digital hygrometers.

Q2: What's the difference between dry and wet bulb temperatures?
A: Dry bulb measures ambient air temperature, while wet bulb measures temperature cooled by evaporation (using a moistened thermometer).

Q3: When is this approximation most accurate?
A: It works best in moderate temperature ranges (10-30°C) and typical atmospheric conditions.

Q4: Why does wet bulb temperature matter?
A: It indicates the lowest temperature achievable through evaporative cooling at current humidity levels.

Q5: What if my wet bulb reading is higher than dry bulb?
A: This is physically impossible. Check your measurements as the calculator won't process invalid inputs.