Dewpoint Calculator

Calculates the dewpoint based on current temperature and relative humidity.

The Calculation Method uses the Magnus-Formula, so the allowed temperature range is between -65°C/-85°F and 60°C/140°F

Used approximation formula: k3 * ((k2 * ϑ) / (k3 + ϑ) + ln(H/ 100)) / ((k2 * k3) / (k3 + ϑ) - ln(H/ 100))

For ϑ > 0: k2 = 17.62, k3 = 243.12. For ϑ below 0: k2 = 22.46, k3 = 272.62

Table of Contents


Inputs

Abbreviation Summary Description Unit Value Range
ϑ Temperature Current Temperature ° -65°C/-85°F...60°C/140°F
H Relative Humidity Relative Humidity of the Air % 1...100




Outputs

Abbreviation Summary Description Unit Value Range
ϑd Dew Point Calculated Dew Point Temperature °




Parameters

Abbreviation Summary Description Unit Value Range Default Value
O Output Offset Adds a fixed offset to the calculated dew point ° 0