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Quickly calculate Earned Run Average (ERA) with our easy-to-use ERA Calculator. Get accurate results instantly and improve your pitching performance!
The Earned Run Average (ERA) is one of the most important statistics in baseball, measuring a pitcher’s effectiveness by calculating the number of earned runs they allow per nine innings pitched. Our ERA calculator helps players, coaches, and analysts determine a pitcher's ERA instantly and accurately.
The Earned Run Average (ERA) is a metric that represents how many earned runs a pitcher allows per nine innings. A lower ERA indicates a better pitching performance. This statistic is widely used in baseball and is a key factor in evaluating a pitcher’s success.
The formula for calculating ERA is:
ERA = (Earned Runs × 9) ÷ Innings Pitched
For example, if a pitcher allows 3 earned runs over 6 innings pitched, the ERA is:
ERA = (3 × 9) ÷ 6 = 4.50
This means the pitcher allows an average of 4.50 earned runs per nine innings.
Our Earned Run Average Calculator is user-friendly and requires just a few inputs:
ERA Range | Pitching Performance |
---|---|
Below 2.00 | Elite Pitcher |
2.00 - 3.00 | Excellent |
3.00 - 4.00 | Good |
4.00 - 5.00 | Average |
5.00+ | Below Average |
An ERA below 3.00 is generally considered excellent, while an ERA above 5.00 suggests a struggling pitcher.
Several factors can influence a pitcher’s ERA:
The ERA calculator is a valuable tool for baseball players and analysts to assess a pitcher’s performance. By understanding and monitoring ERA, players can improve their pitching strategies and track their progress effectively. Use our ERA calculator to get instant and accurate results.
A good ERA is typically below 3.00. Elite pitchers maintain ERAs under 2.50, while average pitchers have ERAs between 4.00 and 5.00.
ERA+ adjusts a pitcher's ERA based on the league average and ballpark effects, making it easier to compare pitchers across different conditions.
No, ERA cannot be negative since it represents the number of runs a pitcher allows.
The lowest single-season ERA in MLB history is 0.86, recorded by Tim Keefe in 1880.
A high ERA can result from poor pitching control, weak defense, or pitching in hitter-friendly ballparks.