Enter the cardiac output (L/min) and the body surface area (m^2) into the Calculator. The calculator will evaluate the Cardiac Index.

## Cardiac Index Formula

CI = CO / BSA

Variables:

- CI is the Cardiac Index (L/min/m^2)
- CO is the cardiac output (L/min)
- BSA is the body surface area (m^2)

To calculate Cardiac Index, divide the cardiac output by the body surface area.

## How to Calculate Cardiac Index?

The following steps outline how to calculate the Cardiac Index.

- First, determine the cardiac output (L/min).
- Next, determine the body surface area (m^2).
- Next, gather the formula from above = CI = CO / BSA.
- Finally, calculate the Cardiac Index.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

cardiac output (L/min) = 5

body surface area (m^2) = 2.5