Dew Point Calculator
Dew point calculator: dew point from temperature and relative humidity (Magnus formula), and what it means for comfort and condensation.
Td = c · γb − γ · γ = ln(RH) + b Tc + T
How to use this calculator
- Type your input in the box.
- The result updates as you type.
- Use “Copy result” or “Copy link” to share it.
The dew point is the temperature at which air becomes saturated. Below 50 °F feels dry; above 65 °F feels sticky; above 70 °F is oppressive.
Frequently asked questions
77 °F at 60 % humidity?
Dew point ≈ 62 °F.
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