ERA Calculator

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Calculates a pitcher's Earned Run Average (earned runs allowed per nine innings).

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Earned Runs Allowed and Innings Pitched in the units shown.

Step 2

Read Earned Run Average (ERA) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Earned Runs Allowed: 10; Innings Pitched: 50

Earned Run Average (ERA): 1.8 Runs

Earned Runs Allowed: 25; Innings Pitched: 100

Earned Run Average (ERA): 2.25 Runs

Earned Runs Allowed: 15; Innings Pitched: 75

Earned Run Average (ERA): 1.8 Runs

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