Dew Point Calculator
Calculate the dew point temperature from air temperature and relative humidity. Includes comfort level assessment and frost risk.
Inputs
°
%
Results
Dew Point
67.2
Comfort LevelOppressive
Temp/Dewpoint Spread12.8°
Frost RiskNo
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Formula
Uses the Magnus formula: Td = (b × α) / (a - α), where α = (a × T) / (b + T) + ln(RH/100). Constants: a = 17.27, b = 237.7°C.Related Calculators
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