Work out slugging percentage instantly with clear inputs, formula shown and shareable results.
Total bases weight each hit by its length, one through four, and slugging is total bases over at bats; isolated power subtracts batting average to leave only the extra bases. Isolated power separates a singles hitter from a slugger, since two players can share a .305 average with very different run-producing value.
Slugging
SLG = (singles + 2 x doubles + 3 x triples + 4 x home runs) / at bats
Isolated power
ISO = SLG - batting average
SLG = (singles + 2 x doubles + 3 x triples + 4 x home runs) / at bats. Total bases weight each hit by its length, one through four, and slugging is total bases over at bats; isolated power subtracts batting average to leave only the extra bases.
Isolated power separates a singles hitter from a slugger, since two players can share a .305 average with very different run-producing value.
Enter singles, doubles, home runs, at bats. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.