# Slugging percentage

**Slugging Percentage** (SLG), also known as **Slugging Average**, is a popular measure of a hitter's power. It is calculated by taking the total number of bases and dividing it by the number of ABs a player has. The equation looks like this:

SLG = TB/AB = (1B+(2B*2)+(3B*3)+(HR*4)/AB

A player's SLG is often combined with his On-Base Percentage (OBP) to give a player's OPS (On-Base Percentage + Slugging Average).

Slugging Average is often criticized since it does not accurately describe a player's true power. Since the equation counts singles into its equation, a hitter who mainly hits singles can have what appears to be an average SLG while not having many extra base hits at all. Due to this, a separate statistic, Isolated Power, has become popular in being the statistic to better gauge a hitter's power.