About the WHIP Calculator
This WHIP calculator works out walks plus hits per inning pitched — the simplest measure of how many baserunners a pitcher allows. Enter the walks, hits and innings from a box score or season line and it returns WHIP to three decimals, plus hits per nine (H/9), walks per nine (BB/9) and total baserunners per nine innings.
Innings can be typed the way box scores print them: 6.2 means six innings and two outs (6⅔ innings), not 6.2 innings. Switch the notation toggle off if your figure is already a true decimal such as 6.667. An optional hit-by-pitch field shows a stricter “baserunners per inning” figure, because official WHIP ignores batters hit by a pitch.
Use it for fantasy baseball, scouting reports, high school and college stat books, or to see how one more start would move a pitcher’s WHIP. WHIP is not scaled by game length, so the same formula works for baseball and softball.
With the default inputs, the whip is 1.139. Change any value above to recalculate instantly.
How to use the whip calculator
- 1Enter the walks the pitcher allowed.
- 2Enter the hits allowed.
- 3Enter innings pitched as printed in the box score (e.g. 172.1).
- 4Optionally add hit batters for a total-baserunner rate.
- 5Read the WHIP and compare it to the benchmark chart.
Formula and method
WHIP adds the walks and hits a pitcher allowed and divides by innings pitched. It deliberately ignores hit batters, errors, fielder’s choices and catcher’s interference, so it measures the baserunners the pitcher is most directly responsible for. Unlike ERA, it is not multiplied by nine, so the same number means the same thing in seven-inning softball games.
Innings are counted in thirds — one third per out — so box-score notation 6.2 is converted to 6⅔ before dividing. H/9 and BB/9 scale hits and walks to a nine-inning game, which shows whether a high WHIP comes from giving up contact or from control problems.
- BB
- Walks (bases on balls) allowed, including intentional walks
- H
- Hits allowed
- IP
- Innings pitched in true thirds (outs ÷ 3)
Worked examples
Season line: 45 BB, 160 H in 180 IP
45 walks plus 160 hits is 205 baserunners. 205 ÷ 180 innings = a 1.139 WHIP — a strong mark. Per nine innings that is 8.0 hits and 2.25 walks.
One start: 2 BB, 6 H in 5.2 IP
5.2 innings means 5⅔ innings (17 outs). Eight baserunners ÷ 5.667 innings = a 1.412 WHIP for the outing.
Including hit batters
Official WHIP is (30 + 120) ÷ 150 = 1.000. Counting the 6 hit batters too, the pitcher allowed 156 ÷ 150 = 1.04 baserunners per inning, or 9.36 per nine.
Frequently asked questions
How do you calculate WHIP?+
Add walks and hits allowed, then divide by innings pitched. A pitcher with 40 walks and 150 hits in 190 innings has a WHIP of 190 ÷ 190 = 1.00.
What is a good WHIP in baseball?+
In modern MLB a WHIP around 1.00 is elite, 1.10–1.20 is very good, about 1.30 is league average and anything above 1.50 is poor. Youth and amateur WHIPs run higher.
Does WHIP include hit by pitch or errors?+
No. Official WHIP counts only walks (including intentional walks) and hits. Batters hit by a pitch and players reaching on errors or fielder’s choices are left out.
How do I enter 6⅔ innings?+
Type 6.2, the box-score form, with notation switched on. Each .1 is one out (a third of an inning), so 6.2 is 20 outs. There is no such thing as .3 innings.
Is WHIP different for softball?+
No. Because WHIP is a per-inning rate rather than a per-game rate, the formula is identical for seven-inning softball and high school games.
What is the difference between WHIP and ERA?+
ERA measures earned runs allowed per nine innings, while WHIP measures baserunners per inning. WHIP is less affected by defense and sequencing luck, so it often predicts future ERA well.