Enter the theoretical area (ft^2) and the measured area (ft^2) into the Calculator. The calculator will evaluate the Error In Area.

## Error In Area Formula

EIA = (TA - MA) / TA * 100

Variables:

- EIA is the Error In Area (%)
- TA is the theoretical area (ft^2)
- MA is the measured area (ft^2)

To calculate the Error In Area, divide the difference between the theoretical area and measured area by the theoretical area, then multiply by 100.

## How to Calculate Error In Area?

The following steps outline how to calculate the Error In Area.

- First, determine the theoretical area (ft^2).
- Next, determine the measured area (ft^2).
- Next, gather the formula from above = EIA = (TA – MA) / TA * 100.
- Finally, calculate the Error In Area.
- 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.

theoretical area (ft^2) = 15

measured area (ft^2) = 10