Work out a pitcher’s WHIP — walks plus hits per inning pitched, one of the most-used rate stats for measuring how often a pitcher lets baserunners on.
How it works
WHIP is (walks + hits) divided by innings pitched: WHIP = (BB + H) ÷ IP. A pitcher who allows 40 walks and 120 hits over 180 innings has a WHIP of 0.889 — lower is better, since it means fewer baserunners allowed per inning.
What this does not include
WHIP treats a walk and a hit as equally bad and doesn’t distinguish a single from a home run, so it isn’t a complete measure of a pitcher’s effectiveness on its own.
How to use this calculator
- Enter total walks allowed.
- Enter total hits allowed.
- Enter innings pitched (fractional innings like 180.1 are fine).
A worked example
40 walks, 120 hits, 180 innings pitched: WHIP = (40+120) ÷ 180 = 0.8889.
20 walks, 60 hits, 90 innings pitched: WHIP is also 0.8889 — the same rate at a smaller sample size.
What the variables mean
| Variable | Meaning |
|---|---|
| Walks | Bases on balls allowed |
| Hits | Hits allowed |
| Innings pitched | Total innings worked |
Edge cases worth knowing
WHIP measures baserunners allowed per inning, combining both walks and hits into one rate — a lower WHIP generally reflects a more effective pitcher at preventing runners from reaching base.
Zero innings pitched makes WHIP undefined — there’s no denominator to scale the walks and hits against, so the calculator declines to show a result.
What’s a good WHIP?
In modern professional baseball, a WHIP under 1.20 is generally considered very good, and elite starters sometimes sit near or below 1.00.
Does WHIP count hit-by-pitches?
No — the standard WHIP formula counts only walks and hits, not hit-by-pitches, errors, or fielder’s choices.
How are fractional innings entered?
Baseball records partial innings as .1 (one out) or .2 (two outs) rather than true thirds — enter innings pitched exactly as shown on the box score, e.g. 180.1 for 180 innings and one out.
