WHIP Calculator
Calculate WHIP (walks + hits per inning pitched) from walks, hits, and innings pitched.
In plain terms: this is how many baserunners the pitcher allows per inning through walks and hits — 1.20 means about six baserunners across five innings. Runners who reach on an error are not counted.
Informational only — not a substitute for official league statistics or professional judgment.
How it's calculated
Assumptions
- Counts only walks and hits allowed, per the standard formula — hit batters, errors, and other non-hit baserunners are not included.
- Innings pitched must be entered in standard baseball notation (.0, .1, or .2 for 0, 1, or 2 outs) — not tenths of an inning.
Source: MLB Glossary — WHIP
Last reviewed: July 2026
Frequently asked questions
What's considered a good WHIP?
In modern MLB, a WHIP under 1.20 is considered very good for a starting pitcher, and under 1.00 is elite — meaning the pitcher allows fewer than one baserunner per inning on average. League-average WHIP typically sits around 1.30.
How is WHIP different from ERA?
WHIP measures baserunners allowed (walks plus hits) per inning, regardless of whether they scored. ERA measures earned runs actually allowed per 9 innings. A pitcher can have a low WHIP but a higher ERA (bad luck or poor sequencing with runners in scoring position), or vice versa.
Does WHIP include hit batters or errors?
No — the standard WHIP formula only counts walks and hits allowed. Hit-by-pitch, errors that let a batter reach base, and other non-hit, non-walk baserunners aren't included, which is one of WHIP's known limitations as a measure of total baserunners allowed.
Why does innings pitched use .1 and .2 instead of normal decimals?
Baseball box scores record partial innings in thirds, not tenths: .1 means one out recorded (1/3 of an inning) and .2 means two outs recorded (2/3 of an inning). This calculator converts that notation to real innings automatically before computing WHIP.
Related tools
Calculate a pitcher's earned run average from earned runs and innings pitched.
Open calculator →BaseballBatting Average CalculatorCalculate batting average (AVG) from hits and at bats.
Open calculator →BaseballOPS CalculatorCalculate OPS (on-base plus slugging) from hits, at bats, total bases, walks, hit by pitch, and sacrifice flies.
Open calculator →BaseballFielding Percentage CalculatorCalculate fielding percentage (FPCT) from putouts, assists, and errors.
Open calculator →BaseballSlugging Percentage CalculatorCalculate slugging percentage (SLG) from singles, doubles, triples, home runs, and at bats.
Open calculator →BaseballOBP CalculatorCalculate on-base percentage (OBP) from hits, walks, hit by pitch, at bats, and sacrifice flies.
Open calculator →BaseballInnings Pitched CalculatorConvert baseball innings pitched notation (.1/.2 for outs) into true decimal innings and total outs.
Open calculator →BaseballStrikeout-to-Walk Ratio CalculatorCalculate a pitcher's strikeout-to-walk ratio (K/BB) from strikeouts and walks.
Open calculator →BaseballBB/9 CalculatorCalculate a pitcher's walks per nine innings (BB/9) from walks allowed and innings pitched.
Open calculator →BaseballK/9 CalculatorCalculate a pitcher's strikeouts per nine innings (K/9) from strikeouts and innings pitched.
Open calculator →BaseballLittle 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.
Open calculator →