How to Calculate WHIP in Baseball

In the world of baseball analytics, few statistics are as widely used and respected as WHIP. Whether you are a fantasy baseball enthusiast or a die-hard fan of the MLB, understanding how to calculate WHIP is essential for evaluating a pitcher's performance and efficiency.

WHIP Calculator

Note: .1 = 1 out, .2 = 2 outs

What is WHIP?

WHIP stands for Walks plus Hits per Innings Pitched. It is a measurement used to determine how well a pitcher prevents base runners from reaching base. Unlike ERA (Earned Run Average), which can be influenced by defensive errors or the timing of hits, WHIP focuses strictly on the pitcher's ability to keep the bases empty.

The WHIP Formula

The calculation for WHIP is straightforward. You simply add the total number of hits and walks allowed by a pitcher and divide that sum by the total number of innings pitched.

WHIP = (Hits + Walks) / Innings Pitched

Step-by-Step Calculation Example

Let's say a pitcher has the following stats for a season:

  • Hits: 160
  • Walks: 50
  • Innings Pitched: 200

To find the WHIP:

  1. Add Hits and Walks: 160 + 50 = 210.
  2. Divide by Innings Pitched: 210 / 200 = 1.05.

In this case, the pitcher's WHIP is 1.05.

A Note on "Partial" Innings

In baseball box scores, innings are often recorded as decimals like 6.1 or 6.2. It is important to remember that these are not true decimals:

  • .1 represents 1 out (1/3 of an inning, or .333).
  • .2 represents 2 outs (2/3 of an inning, or .666).

When calculating WHIP manually, you must convert these to their decimal equivalents before dividing.

What is a Good WHIP?

Context is everything in baseball. Generally, the lower the WHIP, the better the pitcher. Here is a rough guide to interpreting WHIP values in the modern era:

  • 1.00 or lower: Elite/Hall of Fame level.
  • 1.10 - 1.20: Very Good / All-Star level.
  • 1.30: Average.
  • 1.50 or higher: Below average / struggling to stay in the rotation.

Why Does WHIP Matter?

WHIP is a "rate stat." It tells you how much trouble a pitcher gets into on a per-inning basis. A pitcher with a high WHIP is constantly working out of the stretch and dealing with runners on base, which eventually leads to more runs scored. For fantasy baseball players, WHIP is a standard category because it is a very stable indicator of a pitcher's true skill level compared to more volatile stats like Wins.