WHIP Calculator — Baseball Innings Notation
Calculate walks plus hits per inning pitched with baseball innings notation, showing recorded outs and the supporting numerator.
Calculate WHIP from walks, hits allowed and innings pitched. The tool accepts the baseball notation used in a pitching line and converts it to recorded outs before division. It also shows the counted baserunners so you can check exactly which events entered the calculation.
How to use this tool
- Enter hits and walks allowed for the same pitching period.
- Enter innings as a whole number, or append .1 or .2 for the remaining outs.
- Check the recorded-out total and read the displayed rate.
Formula
Outs = 3 × whole innings + remaining outs; WHIP = 3 × (BB + H) / outs
The factor of three converts the per-out count into a per-inning rate. A hit by pitch is not included in standard WHIP, even though the batter reached base. Zero recorded outs leave the rate undefined.
Example
Allowing 5 hits and 2 walks in 6⅔ innings means seven counted baserunners over 20 outs. Enter 6.2; WHIP is 3 × 7 / 20 = 1.050.
Frequently asked questions
What does the digit after the dot mean?
It is the number of outs after the whole innings: .1 is one-third and .2 is two-thirds. Values such as .3, .5 or .20 are rejected to avoid mixing notation systems.
Does WHIP count every runner who reaches base?
No. It includes walks and hits only. Hit batsmen, errors and a fielder’s choice are excluded, so it should not be labeled all baserunners per inning.
Can I average rates from separate appearances?
Combine the underlying counts and recorded outs first. Giving a one-out appearance the same weight as a complete game would distort the combined rate.
Sources
Last updated: 2026