how old  is bruno mars
(Photo by Brad Barket/Getty Images for Atlantic Records) Bruno Mars is 30 years old, born October 8, 1985, but what most people ask when they see him perform is, âHow tall or short is he?â Mars is 5â² 5â³ in height, so heâs a bit on the shorter side. Mars actually admits that he often wears a hat to appear taller.