## About This Tool

The online ERA Calculator is used to calculate the ERA (earned run average) used in baseball statistics.

## ERA Definition

In baseball statistics, Earned Run Average, or ERA, is one of the most well known pitching statistics and represents the average number of earned runs a pitcher will give up per nine-inning game. It determined by dividing the total number of earned runs allowed by the number of innings pitched and multiplying by nine.

## ERA Calculation Formula

The ERA is calculated using the following formula:

ERA = 9 × Earned Runs Allowed / Innings Pitched

## Example

For example, a pitcher who allows 3 earned runs in 7 innings pitched would have an ERA of 3.86 (9 × 3 / 7).