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era Calculator

ERA Calculator

Enter the runs earned along with innings pitched to calculate earned run average through this ERA calculator.


If you want to add a partial inning, .4444 is for a fourth of an inning & .8888 is for two fourths, etc.

Earned runs

Innings pitched

Outs pitched (optional)

Innings in a game

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The simple but highly accurate ERA calculator for baseball is specifically designed to calculate the ERA (earned run average) according to given inputs. An ERA is the most useful baseball statistics as it shows the pitcher’s overall effectiveness. Give a read to this article to learn what is earned run average (era), era meaning in baseball,  how to calculate era baseball (earned run average) of a baseball player manually and with era baseball calculator, and much more that you need to know about ERA baseball.

Let’s start with the era definition in baseball!

What Is ERA In Baseball?

In simple term, ERA stands for earned run average is a baseball metric that is used to determine the efficiency of a pitcher in a more accurate way than a simple win-to-lose ratio. By ERA baseball definition, it is a measure in baseball, softball, and cricket that taken into account to figure out how good a pitcher is. It is most well-known pitching statistics that indicate the average number of earned runs a pitcher will give up per nine-inning game. More specifically, it is a ratio or runs (minus runs due to errors), innings pitched, and outs pitched.

Inning Per Sport:

  • Baseball = 9 Innings
  • Softball = 7 Innings
  • Cricket = 1 or 2 Innings

ERA baseball formula will be taken into account to calculate ERA; our earned run average calculator also uses the same formula for calculating era.

What Is ERA Formula?

The earned run average formula is as follow:

ERA = (Earned Runs / Innings Pitched) * Game Innings

The terms in the baseball era formula;

  • Earned Runs (ER): it indicates a run in baseball that scores without the benefit of an error before the fielding team has had a chance to make the 3rd putout of the inning
  • Innings Pitched (IP): it is a pitching statistic in baseball that measures the number of innings a pitcher remains in a game as there are (3 outs) in an inning, with each out recorded indicates 1/3 of an inning pitched
  • Game Innings: it is the total innings in a game, typically, in baseball, this value is equal to 9 and lower for softball games or little league games. However, the above calculator allows you to change these parameters

How to Calculate ERA in Baseball (Manually)?

Let’s define with an example:


Calculate ERA for the given details:

If a pitcher has pitched 96 innings and 1 out and has allowed 28 Earned Runs; then


Put the values in the above pitchers era formula:

ERA = [28 / (96 + 1/3)] * 9

ERA = (28 / 96.333) * 9

ERA = 0.29066 * 9

ERA = 2.6159

ERA Calculator:

The free and most reliable baseball era calculator that helps to calculate pitchers earned run average or ERA in any sports that include baseball, softball, and even cricket. It takes earned runs; innings pitched, out-pitched (optional), and game innings for era calculation.

How is ERA Calculated With This Calculator:

Quit worrying, the tool is fully loaded with user-friendly. You just have to fill up a few fields and hit the calculate button to get instant results. Let’s take a look!

  • First, you have to enter the earned runs into the designated field of the calculator
  • Right after, you have to enter innings pitched values into the box
  • Very next, you have to enter outs pitched value, but it is optional
  • Then, you have to enter the number of total innings game in the field of innings in a game
  • Once you entered the values, hit the calculate button and the earned run average calculator shows pitchers ERA

Historical ERA:

Earned run average or ERA has been used for years ago to calculate the performance of pitchers in both major league baseball and softball. It is said to be as the benchmark for any other analytical measure. And, this pitching statistic was developed and used in the starting of 1900, and the MLB (Major League Baseball) organization defines that a good ERA has varied from decade to decade as rule changes and other factors including nutrition and sports science. Well, our pitching era calculator helps you to perform era calculations for MLB pitchers.

Here we have listed the top 5 all-time leaders in ERA, you can see many of them are from before 1920. Yes, this all just because the rules changes in 1920 that got rid of the spitball and a few other factors.

top 5 all-time leaders in ERA Baseball

Additionally, if you take the look at the pre-1920’s pitcher, this list is quite different with pitchers from the modern era.

1920’s pitcher era in baseball

In recent years, there is a new type of ERA has emerged as a common metric that is ERA+ or also called an adjusted run average. It is the value that takes league averages at ballparks into ERA consideration.

Thankfully, you learned what is an era in baseball, how do you calculate earned run average, and much more regarding ERA.


FAQ’s (ERA or Earned Run Average):

What is good era in baseball?

An ERA between 2.00 and 3.00 is referred to as an excellent and is only achieved by the best pitchers in the league. An ERA between 3.00 and 4.00 is said to be above-average. An ERA between 4.00 and 5.00 is said to be average, and the majority of pitchers have an ERA this average range.

What is a bad era in baseball?

Now, about the ERA (Earned Run Average) in different decades and baseball eras:

The definition of a good ERA varies from year to year as with batting average. In the dead-ball era of the 1900s and 1910s, an ERA below 2.00 was referred to as a good ERA. In the late 1920s and through the 1930s (at that time the conditions of the game changed in a way that strongly favored hitters), below 4.00 was considered as a good ERA – Only the highest caliber pitchers like Dazzy Vance or Lefty Grove would consistently post an Earned Run Average (ERA) under 3.00 during these years. In the 1960s, other influences like ballparks with several dimensions were introduced, and sub 2.00 Earned Run Average’s returned. Now, in 2019, an (Earned Run Average) or ERA under 4.00 is again considered good.

What is my era?

The formula for finding ERA is mentioned-above that is 9 x earned runs/innings pitched. Remember that if a pitcher exits a game with runners on base, then any earned runs scored by these runners will account against him. Experts depict that ERA (Earned Run Average) should be an ideal evaluation of pitchers. The era baseball calculator allows you to calculate pitchers earned run average for 6 innings, 7 innings, 9 innings, and more!

What is a good era+?

The average ERA+ is set to be as 100, a score above 100 is referred to as that the pitcher performed better than average, while below 100 said to be worse than average.

What is more important era or whip?

WHIP is something that reflects a pitcher’s propensity for allowing batters to reach base, thus, a lower WHIP refers as the better performance. And, ERA is something that measures the run that a pitcher give up, and WHIP is referred to as the way which more directly determine a pitcher’s effectiveness against batters.

Who has the best bullpen in baseball?

In 2019, the Yankees’ bullpen is anchored by closer Aroldis Chapman, who converted 37 to 42 save opportunities while posting a 2.21 Earned Run Average (ERA).

Who is the best baseball team in 2020?

Let’s take a look at MLB power rankings for the 2020 season:

  • Los Angeles Dodgers
  • Tampa Bay Rays
  • Minnesota Twins
  • Atlanta Braves
  • New York Yankees
  • Washington Nationals
  • Houston Astros
  • Oakland Athletics
  • Cincinnati Reds
  • St. Louis Cardinals
  • Arizona Diamondbacks
  • New York Mets
  • Chicago White Sox
  • Chicago Cubs
  • Philadelphia Phillies
  • Cleveland Indians
  • Milwaukee Brewers
  • Texas Rangers
  • San Diego Padres
  • Los Angeles Angels
  • Toronto Blue Jays
  • Boston Red Sox
  • Colorado Rockies
  • Kansas City Royals
  • Miami Marlins
  • Seattle Mariners
  • Detroit Tigers
  • San Francisco Giants
  • Pittsburgh Pirates
  • Baltimore Orioles

An online earned run calculator helps you to calculate era in MLB series for your favorite mlb pitcher.

Who has won the most World Series in baseball?

The “New York Yankees” are said to be the best and valuable sports brand on the planet, it’s all just because of their success on the baseball field. The N.Y.Yankees has won the World Series Championships a record 27 times, with their closest rivals in terms of titles, the St.

Has there ever been a 3 pitch inning?

Major League Pitchers who threw a 3-Pitch inning are as following, it’s all completely unofficial and no record books have ever been kept. Even, these pitchers had no problem with their pitch count!

  • Jorge De Leon
  • Tommy Hunter
  • Alex Wilson
  • Joe Smith
  • Miguel Gonzalez
  • Mike Minor

What would it be for 12 innings, 1 run off error?

If no ER or Earned Runs were allowed, the ERA (Earned Run Average) is zero.

Can a pitcher make a fielding error?

Absolutely, if a weak ground ball is hit and the pitcher bobbles the ball while fielding it, then by making the throw to first for the out late, the pitcher receives an E1.

How do I calculate an ERA for the season if the number of innings played changed every game?

All you need to use the total number of innings pitched so far in the season.

If a game goes to more than nine innings, do I multiply by that number instead of 9?

No, remember that a standard game is still 9 innings. ERA (Earned Run Average) depends off of a standard game. The extra innings would be referred in the number of innings pitched.

How do passed balls affect ERA?

Don’t fret, a passed ball has no effect on a pitcher’s earned run average (ERA). A passed ball is roughly indicated the same as an error and not at all play a part in the scoring of an earned run (ER).

What is the ERA for 64 innings and 7 runs given up?

.0.98 that’ said “oh ninety-eight.” This assumes that all 7 runs were earned, and that a standard game is indicated to be 9 innings. And, if you consider 7 innings to be standard, then the ERA (Earned Run Average) is said to be as .076.

What is the ERA for 54 innings and 6 runs given up?

The Earned Run Average (ERA) would be 0.99, considering 9 innings is standard and that’s all 6 of the runs were earned.

How do I calculate ERA when fewer than 9 innings have been played?

All you need to take the total number of runs allowed and divide it by the number of innings pitched. Then, you have multiply that number by 9.

How Do You Calculate ERA For a 7 Inning Game?

It is an estimation of pitcher’s performance that is determined by dividing the total of earned runs allowed by the total of innings pitched and multiplying the result by 7. In baseball pitching statistic, it is said to be as the mean of the runs earned that is given up by a pitcher per 9 innings pitched. Also, all you need to plug-in the values into the era calculator for 7 innings game to calculate era (earned run average) for a 7 inning games.

Is ERA Based On 9 Innings?

No doubt, a standard game is still having 9 innings and ERA is based off of a standard game. Remember that the extra innings would be reflected in the number of innings pitched and a passed ball has no effect on pitcher’s Earned run average.

What is The Highest ERA In MLB History?

The most wins by a pitcher named Warren Spahn’s (363) who played his entire career in the post-1920 live-ball ERA.

What Does ERA+ Mean?

Adjusted ERA+ is often abbreviated as ERA+ or ERA plus, it is a pitching statistic in baseball. ERA plus adjusts a pitcher’s ERA according to the pitcher’s ballpark (in case he ballpark favors batters or pitchers) and the earned run average of the pitcher’s league.

Who Has The Lowest Career ERA In MLB History?

Albeit over a shorter career, Addie Joss’ career Earned run average of 1.89 is second all-time to Ed Walsh, and his 0.968 WHIP is the lowest ratio on the count. Joss’ pitched for the Cleveland Naps of the American League.

What Is The Lowest ERA Ever?

In 1880, Tim Keefe was posted the lowest single-season ERA that is 0.86 ERA in 105 innings pitched for the National League’s Troy Trojans under the supervision of his closest competitor by .52 runs. Dutch Leonard’s 0.96 ERA is a single-season record in the American League.

Final Words:

Our era calculator helps you to perform calculations for softball, baseball, and cricket. This calculator for era (earned run average) is an incredible tool to measure the effectiveness of the pitcher’s in a more accurate way!


From Wikipedia, the free encyclopedia – In baseball statistics, earned run average (ERA) – ERA in different decades and baseball eras – All-time career leaders In the ERA

From the source of wikihow – Co-authored by wikiHow Staff – Baseball Pitching – Understanding Earned Run Average – About the method of Calculating Earned Run Average

From the source of MLB – What is Earned Run Average (ERA) – ERA is said to be as the most commonly accepted statistical tool for evaluating pitchers

From the source of baseball fandom – (Earned Run Average) All time Leaders in Baseball – What is a good ERA in Baseball?