Enter the number of stomata in the FOV and the area (mm^2) into the Stomatal Density Calculator. The calculator will evaluate and display the Stomatal Density.

## Stomatal Density Formula

The following formula is used to calculate the Stomatal Density.

**Ds = #S / A**

- Where Ds is the Stomatal Density (stomata/mm^2)
- #S is the number of stomata in the FOV
- A is the area (mm^2)

## How to Calculate Stomatal Density?

The following example problems outline how to calculate Stomatal Density.

Example Problem #1:

- First, determine the number of stomata in the FOV.
- The number of stomata in the FOV is given as: 365.

- Next, determine the area (mm^2).
- The area (mm^2) is provided as: 3.

- Finally, calculate the Stomatal Density using the equation above:

Ds = #S / A

The values given above are inserted into the equation below:

Ds = 375 / 3 = 125 (stomata/mm^2)

Example Problem #2:** **

For this problem, the variables needed are provided below:

number of stomata in FOV = 753

area (mm^2) = 38

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer.

Ds = #S / A** = ?**