VPD Calculator - Vapor Pressur

Calculate Vapor-Pressure Deficit using Air temperature, Leaf Surface Temperature (LST), and Relative Humidity (RH).

Calculates the Saturated Surface Vapor Pressure, Air Vapor Pressure, and then VPD.

Quickly enter your environmental details from your grow space and compare it to recommended VPD in kPa for the various growth stages of Cannabis / Marijuana