In baseball statistics, total bases is the number of bases a player has gained with hits, i.e. the sum of his/her hits weighted by 1 for a single, 2 for a double, 3 for a triple and 4 for a home run.

Only bases from safe hits count toward this total. Total bases can be calculated from commonly used baseball statistics by using the formula TB = 1B + (2*2B) + (3*3B) + (4*HR).