Fip (Fielding Independent Pitching) Calculator

To calculate Fielding Independent Pitching (FIP), combine the impact of home runs, walks, hit-by-pitches, and strikeouts with innings pitched and an adjustment constant. This provides a metric for a pitcher’s performance, independent of fielding.

The FIP (Fielding Independent Pitching) Calculator evaluates a pitcher’s performance by isolating outcomes they can control: home runs, walks, hit-by-pitches, and strikeouts. Unlike ERA, FIP removes the impact of fielding to provide a more accurate assessment of a pitcher’s effectiveness. It is widely used in baseball analytics for player evaluation and team strategy.

Formula:

$FIP = \frac{(13 \cdot HR) + (3 \cdot (BB + HBP)) – (2 \cdot K)}{IP} + C$

Variables:

Variable	Description	Unit
$F I P$	Fielding Independent Pitching	Runs
$H R$	Home runs allowed	Count
$BB$	Walks allowed	Count
$HBP$	Hit-by-pitches allowed	Count
$K$	Strikeouts	Count
$IP$	Innings pitched	Innings
$C$	Constant (varies yearly, e.g., ~3.10 in 2024)	Runs

Solved Calculations

Example 1: Calculate FIP ( $HR = 10, BB = 20, HBP = 5, K = 100, IP = 150, C = 3.10$

Step	Value	Explanation
Home Runs ( $HR$ )	$10$	Given
Walks ( $BB$ )	$20$	Given
Hit-by-Pitches ( $HBP$ )	$5$	Given
Strikeouts ( $K$ )	$100$	Given
Innings Pitched ( $IP$ )	$150$	Given
Constant ( $C$ )	$3.10$	Given
Calculation	$FIP = \frac{(13 \cdot 10) + (3 \cdot (20 + 5)) – (2 \cdot 100)}{150} + 3.10$	Plug into formula
Simplification	$FIP = \frac{130 + 75 – 200}{150} + 3.10$	Simplify terms
Simplification	$FIP = \frac{5}{150} + 3.10$	Simplify terms
Result	$FIP = 3.13$	Fielding Independent Pitching

Example 2: Calculate FIP ( $HR = 15, BB = 25, HBP = 3, K = 90, IP = 120, C = 3.10$

Step	Value	Explanation
Home Runs ( $HR$ )	$15$	Given
Walks ( $BB$ )	$25$	Given
Hit-by-Pitches ( $HBP$ )	$3$	Given
Strikeouts ( $K$ )	$90$	Given
Innings Pitched ( $IP$ )	$120$	Given
Constant ( $C$ )	$3.10$	Given
Calculation	$FIP = \frac{(13 \cdot 15) + (3 \cdot (25 + 3)) – (2 \cdot 90)}{120} + 3.10$	Plug into formula
Simplification	$FIP = \frac{195 + 84 – 180}{120} + 3.10$	Simplify terms
Simplification	$FIP = \frac{99}{120} + 3.10$	Simplify terms
Result	$FIP = 3.93$	Fielding Independent Pitching

What is the FIP (Fielding Independent Pitching) Calculator?

The FIP (Fielding Independent Pitching) Calculator is a specialized tool that evaluates a pitcher’s performance by focusing solely on outcomes they can control, such as strikeouts, walks, and home runs.

Unlike the ERA (Earned Run Average), FIP excludes the influence of defensive plays, providing a clearer picture of a pitcher’s skills.

To use the calculator, input values for walks, strikeouts, home runs allowed, and innings pitched. The calculator applies the FIP formula, which incorporates a yearly constant to align FIP with the league’s average ERA. For instance, in MLB, constants are updated annually to reflect changes in the game.

This stat is widely used by analysts and coaches to assess a pitcher’s effectiveness while minimizing the impact of variables outside their control.

A lower FIP generally indicates better performance, with a value under 3.50 considered excellent. The FIP Calculator is valuable for player evaluations, game strategies, and predictive analytics in baseball.