Dew point
Calculate Dew point instantly with the exact formula and a worked example. Free online calculator — no signup.
Dew point
T, °C
RH, %
Dew point
16.6977°C
Td
16,7 °C
More about: Dew point
What it calculates
The “Dew point” calculator computes Dew point in °C from 2 parameters: t, °c, rh, %.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters T, °C = 25, RH, % = 60 the result is 16.7 °C (Magnus: (b·γ) / (a−γ); γ = ln(RH/100) + a·T/(b+T)).
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.