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WHIP (walks + hits per inning pitched) calculator

WHIP measures how many baserunners a pitcher allows per inning via walks and hits: WHIP = (hits + walks) ÷ innings pitched. Lower is better — an elite WHIP is under 1.00. Innings use the .1 = ⅓, .2 = ⅔ notation.

ERA (earned run average) calculatorEarned run average is the classic pitching stat: the earned runs a pitcher allows per nine innings. ERA = (earned runs × 9) ÷ innings pitched. Innings use the .1 = ⅓, .2 = ⅔ notation, so 180.2 means 180 and two-thirds innings.FIP (Fielding Independent Pitching) calculatorFIP estimates a pitcher's run prevention using only the outcomes they control — home runs, walks, hit-by-pitches and strikeouts — scaled to look like ERA: FIP = ((13·HR) + (3·(BB + HBP)) − (2·K)) ÷ IP + constant. The league constant (default 3.10) sets FIP to the same scale as league ERA. Innings use the .1 = ⅓, .2 = ⅔ notation.OPS (on-base plus slugging) calculatorOPS combines the two halves of hitting — getting on base and hitting for power — into one number: OPS = OBP + SLG. On-base percentage = (H + BB + HBP) ÷ (AB + BB + HBP + SF); slugging = (1B + 2·2B + 3·3B + 4·HR) ÷ AB, with singles = H − 2B − 3B − HR. It is the fastest all-round gauge of an offensive player.WAR (Wins Above Replacement) calculator — simplifiedA transparent, educational estimate of Wins Above Replacement. For a position player it builds batting runs from a wOBA-style comparison of the hitter's OBP/SLG to the league, adds baserunning and a positional adjustment, then converts runs above replacement to wins (÷ runs per win, default 10). For a pitcher it works from ERA versus the league. It is a teaching model, not official fWAR or bWAR.Batting average calculatorCompute a baseball or softball batting average from hits and at-bats.Strikeout-to-walk ratio (K/BB) calculatorThe strikeout-to-walk ratio gauges a pitcher's command: K/BB = strikeouts ÷ walks. Higher is better — elite pitchers exceed 4.0, while a ratio near 1.0 signals control problems. It is independent of innings, so it compares starters and relievers alike.At-bats per home run (AB/HR) calculatorAt-bats per home run shows how often a hitter goes deep: AB/HR = at-bats ÷ home runs. A lower number means more frequent power — elite sluggers sit around one homer every 10–15 at-bats.Basketball rebound percentage (TRB%) calculatorEstimate the percentage of available rebounds a player grabbed while on the court (TRB%).

Need WHIP, Innings (decimal)? The WHIP (walks + hits per inning pitched) calculator derives it from Hits allowed (H), Walks (BB), Innings pitched (IP, .1=⅓) in one step. For instance, with Hits allowed (H) = 120, Walks (BB) = 40 and Innings pitched (IP, .1=⅓) = 180 it returns WHIP = 0.889 and Innings (decimal) = 180.00.

How to use it

  1. Enter your values: Hits allowed (H), Walks (BB), Innings pitched (IP, .1=⅓).
  2. Read the result instantly: WHIP, Innings (decimal).

Frequently asked questions

What does the WHIP (walks + hits per inning pitched) calculator actually compute?

It takes Hits allowed (H), Walks (BB) and Innings pitched (IP, .1=⅓) and derives WHIP and Innings (decimal) from them. The calculation is live as you type, so the result updates on every change.

What information do I need to provide?

3 values: Hits allowed (H), Walks (BB) and Innings pitched (IP, .1=⅓). Nothing else is required — no account, no file upload.

Can you show a worked example?

With Hits allowed (H) = 120, Walks (BB) = 40 and Innings pitched (IP, .1=⅓) = 180, the calculator returns WHIP = 0.889 and Innings (decimal) = 180.00. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

When would I actually use this?

Running a league or a tournament: how many fixtures a format produces, how the table resolves ties, and what a team still needs to qualify.

What is the most common mistake?

Comparing two figures produced under different rules. A percentage over ten attempts and one over two hundred are not the same claim; the order of tie-breaks, the way a rating is adjusted and what even counts as an attempt are each set by the competition, not by the sport. The number means something next to the rulebook it came from and very little without it.

What is the difference between the WHIP (walks + hits per inning pitched) calculator and the ERA (earned run average) calculator?

This one returns WHIP; the ERA (earned run average) calculator returns ERA. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

FIP (Fielding Independent Pitching) calculator is the closest one after this: FIP estimates a pitcher's run prevention using only the outcomes they control — home runs, walks, hit-by-pitches and strikeouts — scaled to look like ERA: FIP = ((13·HR) + (3·(BB + HBP)) − (2·K)) ÷ IP + constant. The league constant (default 3.10) sets FIP to the same scale as league ERA. Innings use the .1 = ⅓, .2 = ⅔ notation.

What else is worth having open alongside it?

OPS (on-base plus slugging) calculator and WAR (Wins Above Replacement) calculator — simplified — they come up in the same task often enough to be worth a second tab.

Where do the figures come from, and how current are they?

Fixture counts and point totals are pure combinatorics and hold for any competition. The tie-break order is set by each governing body's own regulations — check the one you are actually in.

Further reading

All guides →
ComparisonERA, FIP and WHIP: Three Answers to One QuestionERA measures what happened, FIP measures only what the pitcher controls without his fielders, WHIP measures traffic allowed. Two pitchers can swap places entirely between them — and the gap between ERA and FIP is a forecast, not a verdict.ExplainerUsage Rate Is Zero-Sum: Five Players Always Add to a Hundred18 shots, 8 free throws and 3 turnovers in 36 minutes gives 29.3 % usage. Five players sharing a team's whole box score get exactly 20 % each — the number is a share, not a skill.ExplainerSix Rebounds Can Beat Ten, and the Difference Is the DenominatorTen rebounds in 32 minutes of a game with 82 boards is 18.3 %. Six rebounds in 18 minutes of the same game is 19.5 % — a better rate from a smaller number.ExplainerHow a Golf Handicap Is Actually Calculated Under the World Handicap SystemBest 8 of your last 20 score differentials, averaged, and no 0.96 multiplier — that disappeared in 2020. Here is the full chain from a gross 92 to a Course Handicap of 17, with the numbers worked out.How-toHow to Calculate Batting Average and What .300 MeansBatting average is hits divided by at-bats. Learn how to calculate it, why a .300 hitter is excellent and what counts as an at-bat in baseball.ExplainerOPS Is a Flawed Sum, and Still the Most Useful Number on the CardOPS adds two fractions with different denominators, which as arithmetic is indefensible. It survives because it tracks run scoring far better than batting average and costs nothing to compute — but it underpays on-base ability, and OPS+ does not fix that.