ERA Calculator
Calculate Earned Run Average for baseball pitchers. ERA measures the average number of earned runs a pitcher allows per nine innings pitched.
Pitching Statistics
Runs scored without defensive errors
Format: 75.2 = 75 and 2/3 innings
ERA Quality Guide
| ERA Range | Rating | Description |
|---|---|---|
| Under 2.50 | Elite | Cy Young caliber, historically great |
| 2.50 - 3.50 | Excellent | All-Star level pitcher |
| 3.50 - 4.00 | Above Average | Solid starting pitcher |
| 4.00 - 4.50 | Average | League average pitcher |
| 4.50 - 5.00 | Below Average | Rotation question mark |
| 5.00+ | Poor | AAA/Replacement level |
Greatest Single-Season ERAs (Modern Era)
Bob Gibson (1968)
Cardinals
1.12
Dutch Leonard (1914)
Red Sox
0.96
Greg Maddux (1994)
Braves
1.56
Pedro Martinez (2000)
Red Sox
1.74
Clayton Kershaw (2014)
Dodgers
1.77
Related Calculators
About ERA Calculator - Earned Run Average for Baseball
Calculate Earned Run Average for baseball pitchers. Analyze pitching performance with ERA and related statistics.
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