The Caffeine Buzz Calculator
How much are you really taking, and will it keep you up tonight?
Pop in your caffeine and I'll do the math.
Daily dose
0%
FDA: 400mg a day for healthy adults
Your caffeine today
KickBallz pieces (110mg each, brand says 3 a day max)
−
1
110mg
+
Other caffeine already today
mg (12 oz brewed coffee ≈ 113 to 247mg, per FDA)
Having it at
defaults to right now
Your bedtime tonight
Calculate my buzz
Here's your buzz
0
Total caffeine (mg)
0
Espresso shots
Caffeine still in your system
Sleep Foundation says about half is cleared in 4 to 6 hours, so this uses 5. It varies person to person.
Caffeine in body
Bedtime