Total bases

${\displaystyle TB=(1\times 1B)+(2\times 2B)+(3\times 3B)+(4\times HR)}$

In baseball statistics, total bases is the number of bases a player gains with hits. It is a weighted sum with values of 1 for a single, 2 for a double, 3 for a triple and 4 for a home run. For example, three singles is three total bases, while a double and a home run is six total bases.

Only bases attained from hits count toward this total. Reaching base by other means (such as a base on balls) or advancing further after the hit (such as when a subsequent batter gets a hit) does not increase the player's total bases. In box scores and other statistical summaries, total bases is often denoted by the abbreviation TB.^[1][2]

The total bases divided by the number of at bats is the player's slugging percentage.