ERA Calculator - Free, Instant, In Your Browser
Enter earned runs and innings pitched to calculate ERA.
How to use Era Calculator
- 1Enter the required date(s) and details above.
- 2Click Calculate - Era Calculator runs instantly, right in your browser.
- 3Read your result below.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
What's the formula?
ERA = (earned runs × 9) / innings pitched.
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.