Calculate FIP (fielding independent pitching) from home runs, walks, hit batters, strikeouts and innings pitched, with a typical or custom FIP constant.
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FIP (Fielding Independent Pitching) Formula
The following formula is used to calculate the Fielding Independent Pitching (FIP) statistic:
Variables:
- FIP is the Fielding Independent Pitching statistic
- HR is the number of home runs allowed
- BB is the number of walks issued
- HBP is the number of batters hit by pitch
- K is the number of strikeouts
- IP is the number of innings pitched
- C is the league/season constant that puts FIP on an ERA-like scale
To calculate the FIP, multiply the number of home runs allowed by 13, add the sum of 3 times the sum of walks issued and batters hit by pitch, subtract 2 times the number of strikeouts. Divide the result by the number of innings pitched and add the constant value.
What is a FIP (Fielding Independent Pitching)?
Fielding Independent Pitching (FIP) summarizes home runs, walks, hit batters and strikeouts on an ERA-like scale. The formula is (13*HR+3*(BB+HBP)-2*K)/IP, plus a league/season constant that aligns league-average FIP and ERA. Lower values indicate fewer modeled runs on that scale, but FIP is not park adjusted and does not measure every aspect of pitching skill. Use consistent source definitions and the appropriate constant rather than assuming 3.2 applies to every season.
How to Calculate FIP (Fielding Independent Pitching)?
The following steps outline how to calculate the Fielding Independent Pitching (FIP) ratio.
- First, determine the number of home runs allowed (HR).
- Next, determine the number of walks allowed (BB).
- Next, determine the number of batters hit by pitches (HBP).
- Next, determine the number of strikeouts (K).
- Next, record innings pitched and the matching league/season constant. In baseball notation, .1 means one out and .2 means two outs. Gather the formula from above = FIP = ((13*HR)+(3*(BB+HBP))-(2*K))/IP + constant.
- Finally, calculate the Fielding Independent Pitching (FIP) ratio.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem:
Use the following variables as an example problem to test your knowledge.
Number of home runs allowed (HR) = 10
Number of walks allowed (BB) = 20
Number of batters hit by pitches (HBP) = 5
Number of strikeouts (K) = 100
Innings pitched (IP) = 150
Constant = 3.2
