BET Surface Area & Pore Volume Calculator

Enter Adsorption Isotherm Data (Pressure, Adsorbed Volume):


Gas Type:
N₂ (Nitrogen) Ar (Argon) CO₂ (Carbon Dioxide) H₂ (Hydrogen) CH₄ (Methane)

Temperature (K):


Sample Mass (g):


Calculate

Formula:

BET Equation (Top Formula):
1 / (V(P₀ / P - 1)) = C / Vₘ × (P / P₀) + 1 / Vₘ

Formula (Dynamic):

BET Equation (Bottom Formula):
1 / (V(P₀ / P - 1)) = C / Vₘ × (P / P₀) + 1 / Vₘ