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%
Safe ceiling: 400mg / day
Your caffeine today
KickBallz pieces (110mg each)
−
1
110mg
+
Other caffeine already today
mg (1 coffee ≈ 95mg)
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
Caffeine has about a 5-hour half-life, so half is gone every 5 hours.
Caffeine in body
Bedtime
Sleep-safe line (50mg)