SportStatNow
Baseball Stat Calculators
Calculators for the baseball stats you look up most — starting with ERA. Every calculator shows the formula it uses and cites its source, so you can verify the math instead of just trusting the output.
Calculate a pitcher's earned run average from earned runs and innings pitched.
Open calculator →WHIP CalculatorCalculate a pitcher's WHIP (walks + hits per inning pitched) from walks, hits, and innings pitched.
Open calculator →Batting Average CalculatorCalculate batting average (AVG) from hits and at bats.
Open calculator →OPS CalculatorCalculate OPS (on-base plus slugging) from hits, at bats, total bases, walks, hit by pitch, and sacrifice flies.
Open calculator →Fielding Percentage CalculatorCalculate fielding percentage (FPCT) from putouts, assists, and errors.
Open calculator →Slugging Percentage CalculatorCalculate slugging percentage (SLG) from singles, doubles, triples, home runs, and at bats.
Open calculator →OBP CalculatorCalculate on-base percentage (OBP) from hits, walks, hit by pitch, at bats, and sacrifice flies.
Open calculator →Innings Pitched CalculatorConvert baseball innings pitched notation (.1/.2 for outs) into true decimal innings and total outs.
Open calculator →Strikeout-to-Walk Ratio CalculatorCalculate a pitcher's strikeout-to-walk ratio (K/BB) from strikeouts and walks.
Open calculator →BB/9 CalculatorCalculate a pitcher's walks per nine innings (BB/9) from walks allowed and innings pitched.
Open calculator →K/9 CalculatorCalculate a pitcher's strikeouts per nine innings (K/9) from strikeouts and innings pitched.
Open calculator →Little League Pitch Count CalculatorLook up Little League pitch limits: the maximum pitches per day by league age and the required rest days from pitches thrown.
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