en.wikipedia.org/wiki/Earned_run_average

In baseball statistics, earned run average (**ERA**) is the mean of earned runs given
up by a **pitcher** per nine innings **pitched** It is determined by dividing the number of
earned runs allowed by the number of innings **pitched** and multiplying by nine.
Runs resulting from defensive errors (including **pitchers**' defensive errors) are ...

www.miniwebtool.com/era-calculator

About **ERA** Calculator. 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 ...

www.wikihow.com/Calculate-ERA-(Earned-Run-Average)

**How to Calculate ERA** (Earned Run Average). **ERA** (Earned Run Average) is the
average number of earned runs a **pitcher** has allowed per every 9 innings he
**pitches**. This is one of the most useful calculations in baseball, as it shows the...

captaincalculator.com/sports/baseball/era-calculator

**How to calculate ERA**. In Baseball, earned run average is calculated as follows: \
text{Earned Run Average} = \frac{\text{Earned Runs Each out **pitched** counts as 1
/3 of an inning. Most professional level games are 9 innings, however softball
games are typically 7 innings and little league games are often 6 or 7 innings.

www.freemathhelp.com/earned-run-average.html

Earned Run Average represents the number of earned runs a **pitcher** will give up
per nine-inning game. This quick lesson will show you **how to calculate ERA** and
provide a few example of real **pitchers** and their ERAs.

www.homerunweb.com/era.html

**How to Calculate** Earned Run Average (**ERA**) As the basic statistical measure of
a **pitcher**, **ERA** determines the average number of earned runs scored against a
**pitcher** every nine innings; an earned run is...

m.mlb.com/glossary/standard-stats/earned-run-average

Statistician and writer Henry Chadwick gets credit for inventing **ERA** in the mid-to-
late 19th century. His thinking was that win-loss record simply didn't go far
enough in **determining** the mark of a good **pitcher**. The statistic caught on in the
20th century, when relief **pitchers** became more prevalent. This made win-loss
records ...

www.csgnetwork.com/baseballeracalc.html

This calculator is designed to give the **ERA** (earned run average) of data entered.
The formula is listed below but you may also visit our Baseball **Pitching** Stats
Formulae page. Enter the data that you have in the required data section. Then
click on **Calculate**. You may change a field and re-**calculate** with other values ...