Enter the amount of molecules in the monolayer and the space occupied by one molecule into the BET Surface Area Calculator. The calculator will evaluate the BET Surface Area.

## BET Surface Area Formula

The following two example problems outline the steps and information needed to calculate the BET Surface Area.

BET = M * AM
• Where BET is the BET Surface Area ( )
• #M is the amount of molecules in the monolayer
• AM is the space occupied by one molecule

To calculate the BET surface area, multiply the amount of molecules in the monolayer by the space occupied by one molecule.

## How to Calculate BET Surface Area?

The following example problems outline how to calculate BET Surface Area.

Example Problem #1:

1. First, determine the amount of molecules in the monolayer.
• The amount of molecules in the monolayer is given as: 100.
2. Next, determine the space occupied by one molecule.
• The space occupied by one molecule is provided as: 1.5.
3. Finally, calculate the BET Surface Area using the equation above:

BET = #M * AM

The values provided above are inserted into the equation below and computed.

BET =100 *1.5 = 150.00

Example Problem #2:

For this problem, the variables required are provided below:

amount of molecules in the monolayer = 600

space occupied by one molecule = 23