Dew Point Calculator
Use this dew point calculator entirely in your browser.
ResultDew point: 13.9 °C
Calculated with the Magnus approximation.
Calculations happen locally in your browser.
How to use this calculator
- Enter the labelled values and review the live result.
- Review the live result and use Copy result when you need to share it.
How the calculation works
The Magnus approximation relates temperature and relative humidity to dew point.
Formula
The Magnus approximation relates temperature and relative humidity to dew point.
Step-by-step calculation
- Enter the labelled values and review the live result.
- The Magnus approximation relates temperature and relative humidity to dew point.
- Check the displayed result, then copy it if needed.
Worked example
22°C at 60% humidity has a dew point near 14°C.
Risk guidance
Frequently asked questions
Does this tool send my inputs anywhere?
No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.
How should I use the result?
Check that the entered units and values match your situation, especially around dates, breaks, and rounding.
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