What Time Frame for the Death by Caffeine Calculator?

Death by Caffeine time frame
Ever since the invention of our Death By Caffeine calculator we are often asked one question in particular.

The one question, by orders of magnitude, that gets asked here more than any other is:

“It says that 10 bottles would kill me, but is that over a month, a day, a lifetime?!”

Let’s apply some common sense to this


If you died after a lifetime consumption of 200 cans of soda, most Americans wouldn’t make it past age 14. That’s clearly not the answer.


If you died after 200 cans of soda in a month, there would still be plenty out there who wouldn’t make it past age 30. It’s painfully easy to drink 6 cans daily, especially if you’re trying to stay awake to finish a project. Conversely, it’s about 142 cups of coffee for most coffee drinkers. That’s under 5 per day. Many people can drink more than that with few side effects. It’s not monthly.


Still not the time frame, but we’re getting warmer.


That’s actually believable. If you managed to ingest that much caffeine in one day, you won’t be feeling so hot. In fact you may be in serious trouble. Not everyone’s liver works at the same speed (caffeine sensitivity level), and some people have reported feeling the effects of caffeine for a full 12 hours – for most people this is more like 4-5 hours.

Here’s the correct answer:

It’s how much caffeine you have in your system at one time.

Yes, it’s rare for people to die from caffeine in beverages.

However, don’t actually try it!.

After 1 gram, you would be very sick indeed.

Unfortunately, there are some products that contain concentrated caffeine and these make it much easier for a person to overdose.

What Formula is This Based On?

Our Death by Caffeine calculator uses the LD50 (the lethal dose amount of a substance that will kill at 50% of the population) for caffeine. This on average is 150 milligrams of caffeine per kilogram of body weight. For most adults this equates to around 10 grams of caffeine.

Please use caffeine responsibly and adhere to the Caffeine Safety Guidelines Caffeine Informer recommends.

Get Help Quitting Caffeine

Reduce your caffeine intake without pain and discomfort.

See our new 10-step plan
  • Fuquan O’Niggahan

    Ok, I’m not dead, I did some more research, and it varies on weight; like 200mg of caffeine per kg of body weight

  • James Valdez

    Whoa cool

  • James Valdez

    For me thats like weekly

  • James Valdez

    Sounds like a weightloss plan

  • James Valdez

    Like 8 grams of pure caffeine diluted in water

  • James Valdez

    Caffeine is the poor mans cocaine.(i eat raw coffee grounds with penut buttrr) tastes good and i get my fix

  • James Valdez

    Reminds me of spike(stil available here in denver)

  • Dbar

    Is he dead?

  • Alexzander Whitmer

    ya he gone’ deaded I just injested a little over 1 gram of caffeine from 8 cups of coffee.

  • Alexzander Whitmer

    Actually 740mg is 0.74grams
    Lethal dose approx. 10 gram
    Lethal dose conversion equal 10,000mg caffeine
    10,000mg/740mg= 13.51
    You would need 13.51 mio bottles to die, mathematically speaking.

  • shits pants

    for me thats daily

  • Ally

    I had 53 caffeine pills and didn’t die. Almost. But I went to the hospital after 5 hours.

  • Ted

    why did you take so many? You are very lucky!

  • Steve

    He was aiming for the Darwin Award.

  • Noone

    What about if a 125 pound person drank 1 can of monster then 9 hours later drank another can what effects would they get…

  • Ted

    Probably not much other than alertness and not being able to sleep. It would be 320 mg of caffeine which is within what is considered safe for most people.

  • kayt

    I am 14 and i drink about 4-5 cans of monster daily. Im roughly 110 pounds. I think you would be fine, probably. I roughly drink about a gram of caffeine a day, trying to stop so i dont die.

  • Ted

    Sounds like a good idea, you are consuming way too much for your age and weight. We have a lot of resources on this site to help you.

  • anne

    I’ve drank about 500 cans of monster since February and I’m perfectly fine. I’ve never had any problems and I’m 15 lol.

  • Trish

    I’m looking at tskin T5 slimming supplement, it says there is 1000mg of cafine in each tablet it says to take x2 daily..
    Is this to much?
    I’ve just come across a news paper article abt a guy who had s heart attack and died after just starting T5???

Last Modified: September 21, 2014