WHIP Baseball Calculator
Calculate walks plus hits per inning pitched (WHIP) for baseball pitchers. Enter hits, walks, and innings for instant WHIP with charts and breakdowns.
About This Calculator
The WHIP (Walks plus Hits per Inning Pitched) Calculator helps baseball players, coaches, and fans quickly compute one of the most important sabermetric statistics for evaluating pitcher performance. WHIP measures the average number of baserunners a pitcher allows per inning — the lower the WHIP, the more effective the pitcher at preventing batters from reaching base.
WHIP is calculated using the formula: WHIP = (Hits Allowed + Walks Allowed) / Innings Pitched. For example, if a pitcher allows 200 hits and 50 walks over 230 innings, the WHIP would be (200 + 50) / 230 = 1.087. This value is typically rounded to three decimal places and is used alongside ERA (Earned Run Average), FIP (Fielding Independent Pitching), and other advanced metrics to assess pitcher performance comprehensively.
In Major League Baseball, a WHIP below 1.00 is considered elite. Legendary pitchers like Addie Joss (0.9678), Ed Walsh (0.9996), and Mariano Rivera (1.0003) hold the lowest career WHIP marks. A WHIP between 1.00 and 1.20 is very good, 1.20 to 1.35 is average, and above 1.50 indicates room for improvement.
Regional Notes
United States: WHIP is a standard statistic tracked for all MLB, MiLB, and NCAA baseball pitchers. It appears on every player's statistical profile alongside ERA, strikeouts, and batting average against. The calculation is consistent across all US baseball leagues using the standard formula.
International: WHIP is used globally in professional baseball leagues including Nippon Professional Baseball (NPB) in Japan, the Korean Baseball Organization (KBO), and the Mexican League. The formula remains identical across all leagues, making WHIP a universal benchmark for pitcher evaluation worldwide.
Frequently Asked Questions
What does WHIP stand for in baseball?
WHIP stands for Walks plus Hits per Inning Pitched. It is a sabermetric statistic that measures the average number of baserunners a pitcher allows per inning pitched. It is one of the most popular ways of assessing a pitcher's effectiveness at preventing batters from reaching base.
How is WHIP calculated?
WHIP is calculated using the formula: WHIP = (Hits Allowed + Walks Allowed) / Innings Pitched. For example, if a pitcher allows 200 hits and 50 walks over 230 innings pitched, their WHIP would be (200 + 50) / 230 = 1.087.
What is a good WHIP in baseball?
In Major League Baseball, a WHIP below 1.00 is considered excellent, 1.00 to 1.20 is very good, 1.20 to 1.35 is above average to average, 1.35 to 1.50 is below average, and above 1.50 is poor. The lower the WHIP, the better the pitcher's performance at preventing baserunners.
What is the lowest WHIP in MLB history?
The lowest career WHIP in MLB history (minimum 1,000 innings) belongs to Addie Joss with a 0.9678 WHIP. Other legendary pitchers with low WHIPs include Ed Walsh (0.9996), Mariano Rivera (1.0003), Clayton Kershaw (1.0067), and Chris Sale (1.0325).
How is WHIP different from ERA?
WHIP measures baserunners allowed per inning pitched while ERA (Earned Run Average) measures earned runs allowed per nine innings. WHIP focuses on a pitcher's ability to prevent batters from reaching base, while ERA measures run prevention. A pitcher can have a low ERA but a high WHIP if they benefit from strong defense or double plays.
Does WHIP include hit by pitch?
In the standard WHIP formula, only hits and walks are counted. Hit by pitch (HBP) is not included in the traditional WHIP calculation. Some advanced sabermetric variants like WHIP+ or adjusted WHIP may include HBP and other ways of reaching base, but the standard formula uses only hits and walks.
What is the formula for calculating WHIP?
The WHIP formula is: WHIP = (H + BB) / IP, where H is hits allowed, BB is bases on balls (walks), and IP is innings pitched. The result is typically rounded to three decimal places.