This caffeine calculator shows how much of a caffeinated drink is safe and how much could be deadly based on a person’s body weight.
Coffee drinker? We have a coffee calculator that will figure out the optimum amount of coffee you should be drinking.
How Do You Calculate Daily Safe Maximum?
We’ve used the latest research to determine what’s an appropriate amount of caffeine for an individual’s body weight. However, it is also recommended that people consume no more than 200 mg of caffeine at one time. Read more about caffeine safe limits here.
Recommendations for caffeine levels are for 18 years of age or over. See more about caffeine limits for children and teens.
What Are The Most Popular Items?
Typically, the top 10 items selected are Red Bull, 5 Hour Energy, Monster, Coca-cola Classic, Mountain Dew, Coffee (brewed), Espresso Coffee, Doctor Pepper, Rockstar, and Diet Coke.
Do Any Foods Contain Caffeine?
There are plenty but they are not included in the caffeine calculator. However, we maintain an extensive list of caffeine in food here.
How Much Caffeine is in These Drinks?
Once you calculated your item, just click it for more detailed caffeine information about the drink in question.
Can Caffeine Really Kill You?
Yes. Caffeine can be lethal with a high enough dosage, and you can get very sick from over-consuming caffeine. People have died from over-consuming caffeine (especially when other health issues are present). Please be very careful, caffeine is a drug.
What’s The Time Frame For Lethal Dose?
A lethal dose is based on the LD50 for caffeine and it’s the amount of the caffeine that has to be in your system at one time. More…
Consuming Too Much Caffeine?
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