title_body: How much caffeine is in an espresso shot?
upvoted_answer: According to caffeineinformer, there is 77 mg of caffeine in 1½ shots of espresso.
  
  Comparatively, an 8 oz. cup of brewed coffee comes in at 163 mg of caffeine.
  
  There is roughly 1/2 as much caffeine in 1.5 shots as there is in 8 oz. of brewed coffee.