Dew Point Calculator

Calculate dew point from temperature and humidity

Temperature

Relative Humidity (%)

Input: 70°F, 50% RH

How It Works

Calculate the dew point temperature given air temperature and relative humidity.

A dew point calculator estimates the temperature at which air becomes saturated with water vapor, causing condensation to form. The dew point is a more accurate measure of atmospheric moisture than relative humidity alone. High dew points (above 20°C or 68°F) feel uncomfortable and muggy, while low dew points (below 0°C or 32°F) indicate very dry air. Dew point is calculated using the Magnus formula.

Results

Enter values to see results

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Quick Tips

• Results update automatically as you type
• Use Tab to navigate between fields
• Press Enter to calculate

Frequently Asked Questions

How does the Dew Point Calculator work?

Simply enter your values into the input fields above. The Dew Point Calculator uses standard formulas to compute results instantly as you type or click.

Is the Dew Point Calculator free?

Yes, this calculator is completely free to use. No registration, no hidden fees, no limits.

How accurate are the results?

Results are computed using industry-standard mathematical formulas. For critical decisions, we recommend consulting a professional.

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