Home › Baseball & softball › ERA Calculator

ERA Calculator

Earned run average from earned runs and innings pitched, including partial innings.

Earned runsInnings pitched (whole)Plus extra outs (0, 1 or 2)Innings per game

How it's calculated

ERA = innings per game × earned runs ÷ innings pitched. Use 9 for MLB and college, 7 for high school and most softball, and 6 for Little League. Innings like 162.1 mean 162 and one out (⅓), not 162.1.

Example

45 earned runs in 162 innings is a 2.50 ERA.

What ERA means (MLB)

Put this calculator on your website: free

Running clubs, coaches, race directors, leagues and team websites: give your members a pace chart or stat calculator right on your own site. Copy the code below and paste it into any page. No sign-up and no cost. It stays up to date automatically.

<iframe src="https://sportsums.com/embed/baseball/era-calculator/" title="ERA Calculator" width="100%" height="460" style="border:1px solid #ddd;border-radius:10px;max-width:760px" loading="lazy"></iframe> <p style="font-size:12px;margin:4px 0 0">ERA Calculator by <a href="https://sportsums.com/baseball/era-calculator/" rel="nofollow">Sport Sums</a></p>

Copy embed code See all calculators you can embed

More baseball & softball calculators

• Batting Average CalculatorBatting average from hits and at-bats, the way scorekeepers figure it.…
• On-Base Percentage CalculatorOn-base percentage (OBP) from hits, walks, hit-by-pitches and sacrific…
• Slugging Percentage CalculatorSlugging percentage (SLG) and total bases from singles, doubles, tripl…
• OPS CalculatorOPS (on-base plus slugging) from a full batting line.…
• WHIP CalculatorWHIP (walks plus hits per inning pitched) for any pitcher.…