How do you calculate ERA???

Answer 1

Let's try to simplify it without all of the math symbols.

You multiply the number of earned runs allowed by 9.
Divide that number by the number of innings pitched (including partial innings like 1/3 or 2/3 innings completed).

For example, a pitcher gives up 3 runs in the last 14 1/3 innings pitched.

3 x 9 = 27
27 divided by 14.3 innings = 1.888 ERA rounded to 1.89

Answer 2

Take the number of Earned Runs a pitcher has allowed, multiply it by 9 innings, then divide that by the numer of innings the pitcher pitched.

For Example: Pitcher pitches 6 innings, and allows 2 runs.
2 X 9 = 18
18 / 6 = 3.
So the pitcher's ERA is 3.00

Answer 3

(Earned runs) x (9) / (Innings pitched) = ERA
So if you pitched 6 innings and gave up 4 runs, your ERA would be 6 [(4) x (9) / (6)].

Here's a list of all the previous answers to this question being asked: http://answers.yahoo.com/search/search_result;_ylt=A0WTcJOVNkpGeAsBHwwjzKIX?p=calculate+ERA

Answer 4

ERA comes from a formula, a rather simple one.

ERA == (earned runs * 9) / (innings pitched)

That's it.

Answer 5

Innings Pitched divided by Earned Runs Allowed

Answer 6

number of innings pitched by runs allowed. Example if you gave up 5 runs in 5 innings and were taken out your ERA would be 9.00 It means you would by alllikelyhood gave up a run an inning.

Answer 7

the number of earned runs divided by the number of outs theyve gotten