Vapor Pressure Deficit (VPD) Calculator
Vapor Pressure Deficit is a vital part of the cannabis growing process (or any controlled environmental agriculture, for that matter). It provides insights into how the plants in question “feel” humidity, which affects nutrition uptake, transpiration, and growth rates. In essence, VPD signifies the difference between the maximum amount of moisture the air can hold at 100% saturation versus how much it is currently holding at a specified temperature.
Our VPD calculator allows you to determine the air’s VPD (or how “thirsty” it is) and how strongly it extracts moisture from a plant through the process of transpiration.
For more information on VPD, check out these useful resources:
Use the calculator below to determine the VPD of the air in your grow space.
°C
%
kPa
Please use the Contact Us form below to get in touch with us for a custom plan to optimize your air’s VPD.
