Last verified: January 2026

Psychrometric Calculator 💨

Calculate all psychrometric properties of moist air including humidity ratio, enthalpy, dew point, wet bulb temperature, and specific volume based on ASHRAE equations.

🌡️ Input Parameters

%
Sea level = 101.325 kPa

📊 Psychrometric Properties

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Enter parameters and click Calculate

📋 ASHRAE Comfort Zone

Per ASHRAE 55, typical comfort conditions are:
• Summer: 23-26°C, 30-60% RH
• Winter: 20-24°C, 30-50% RH
• Air velocity: 0.1-0.2 m/s

📚 References & Standards