WHIP Calculator

You're watching a baseball game, and the announcer says a pitcher has a "WHIP of 1.15." You nod along, but what does that number actually mean? Is it good? Bad? How do you even calculate it? If you've ever wanted to quickly evaluate a pitcher's effectiveness beyond just ERA, you've come to the right place. This free online WHIP calculator takes the guesswork out of the equation. Just enter a few basic stats, and you'll get an instant WHIP value along with a performance category, so you can size up any pitcher in seconds.

How to Use the WHIP Calculator

1. Enter Hits Allowed: Type in the total number of hits the pitcher has allowed. This is a whole number (e.g., 150).
2. Enter Walks (BB): Input the number of bases on balls (walks) the pitcher has issued. This is also a whole number (e.g., 50).
3. Enter Innings Pitched: This is the trickiest part. Use decimals for partial innings. For example, if a pitcher threw 6 and 2/3 innings, you would enter 6.2. A full inning is 1.0.
4. Click "Calculate WHIP": Press the button, and the calculator will instantly compute the WHIP and display it along with a category like "Excellent" or "Average."
5. Use the Clear Button: To start over with a new set of stats, just click the "Clear" button to reset all fields.

For more control, click the Advanced Options toggle. You can include Hit By Pitch (HBP) in the walks total, change the number of decimal places displayed, or switch the rounding mode between standard, ceiling, and floor.

Formula

The math behind WHIP is refreshingly simple. It's a ratio that measures how many baserunners a pitcher allows per inning pitched. The formula is:

WHIP = (Hits Allowed + Walks Allowed) / Innings Pitched

Let's walk through a real example. Say a pitcher has allowed 170 hits, 55 walks, and has pitched 200 innings. First, add the hits and walks: 170 + 55 = 225. Then, divide that total by the innings pitched: 225 / 200 = 1.125. So the pitcher's WHIP is 1.13 (rounded to two decimal places). If you also include 5 hit batters in the advanced options, the numerator becomes 170 + 55 + 5 = 230, and the WHIP becomes 230 / 200 = 1.15.

What is WHIP?

WHIP stands for Walks plus Hits per Inning Pitched. It's one of the most popular sabermetric statistics used to evaluate a pitcher's effectiveness. Unlike ERA, which can be heavily influenced by defense and luck on batted balls, WHIP focuses on what a pitcher can most directly control: not letting batters reach base.

A lower WHIP means the pitcher is doing a great job of keeping runners off the basepaths, which is the primary goal of any pitcher. A WHIP under 1.00 is considered excellent (think Cy Young Award territory). A WHIP between 1.00 and 1.20 is very good, between 1.20 and 1.40 is average, and anything over 1.40 is considered poor and often indicates a pitcher who is struggling. Fantasy baseball players, scouts, and analysts use WHIP as a key metric to predict future performance and compare pitchers across different eras and ballparks.

Frequently Asked Questions

Does WHIP include errors or sacrifice flies?

No. WHIP only counts hits, walks, and (optionally) hit batters. It does not include errors, sacrifice flies, or sacrifice bunts. A batter reaching base on an error is not counted in the pitcher's WHIP, which is one reason why WHIP is seen as a more "pure" measure of a pitcher's control than ERA.

What is a good WHIP for a starting pitcher?

For a starting pitcher over a full season, a WHIP of 1.20 or lower is generally considered good to excellent. A WHIP of 1.30 is around league average. Elite pitchers often post WHIPs below 1.10. For relief pitchers, a slightly lower WHIP is expected, often under 1.15, since they typically pitch fewer innings and are expected to be more dominant.

Can WHIP be less than 1.00?

Absolutely. A WHIP below 1.00 is rare but possible, and it indicates an incredibly dominant season or stretch. It means the pitcher is allowing, on average, fewer than one baserunner per inning pitched. For example, a pitcher with 90 hits and 20 walks over 120 innings would have a WHIP of (90+20)/120 = 0.92.