How many doses a bottle holds — count divided by serving size, not the pill count.
Servings per container is the number of doses in a bottle: the total pill count divided by the serving size. A 120-capsule bottle with a two-capsule serving holds 60 servings, not 120 — so it lasts 60 days at one serving a day.
It's the denominator behind cost per serving on VitaminDB (priceCurrent / servingsPerContainer), which is why a bigger pill count doesn't always mean more doses or a better value.