Caffeine Informer is about all things caffeine: coffee, tea, energy drinks, sodas, and food.
Caffeine amounts for over 4,000 items. Gathered by hand using nutrition labels, contacting manufacturers, and browsing medical journals and databases.

Caffeine Tools and Calculators

Caffeine Calculator

The maximum amounts of any drink - based on your weight.

Coffee Calculator

Calculate the optimal amount of coffee you should drink.

Caffeine Database

Search, sort, and compare over 1,000 drinks.

Safe Limits

How many milligrams of caffeine should you consume?

Caffeine in Food

Caffeine amounts in candies, and medication.

Sugar in Drinks

Does your favorite drink have too much sugar?

Latest Stories

Guide to Caffeinated Water: List of Sparkling and Still
Guide to Caffeinated Water: List of Sparkling and Still
Soft Drinks
Which sparkling waters contain caffeine? We've searched all the various brands, and found a collection of both sparkling and still...
Complete Guide to Sugar Free Energy Drinks
Complete Guide to Sugar Free Energy Drinks
Energy Drinks
A chart listing popular sugar-free energy drinks, their caffeine amount, and which sweeteners are used in the diet energy beverage.
The Most Caffeinated Soft Drinks
The Most Caffeinated Soft Drinks
Soft Drinks
An up-to-date comprehensive list of the 20 most caffeinated carbonated soft drinks (or sodas).
Top 10 Most Popular Soft Drinks (Sodas)
Top 10 Most Popular Soft Drinks (Sodas)
Soft Drinks
Top 10 soft drinks (soda) brands globally and in the USA. How has the market changed, is Coke still the...
Energy Drinks With the Most Caffeine – 2021
Energy Drinks With the Most Caffeine – 2021
Energy Drinks
A roundup of the 20 most caffeinated energy drinks on the market today. Also, the energy shots with the most...

Popular

Energy Drinks With the Most Caffeine – 2021
Energy Drinks With the Most Caffeine – 2021
Energy Drinks
A roundup of the 20 most caffeinated energy drinks on the market today. Also, the energy shots with the most...
Dunkin’ Donuts Coffee Caffeine Content Guide
Dunkin’ Donuts Coffee Caffeine Content Guide
Coffee
Caffeine amounts in Dunkin' Donuts coffee: latte, mocha, Coolatta, Dunkaccino, decaf, and more. Also, how Dunkin' compares to other brands.
The 12+ Deadliest (Strongest) Coffee Brands
The 12+ Deadliest (Strongest) Coffee Brands
Coffee
The deadliest (strongest) coffee brands based on the extremely high amount of caffeine in a typical serving. Many claim to...
Caffeine Withdrawal Symptoms: Top Fifteen
Caffeine Withdrawal Symptoms: Top Fifteen
Caffeine Addiction / Caffeine Side Effects
The most common caffeine withdrawal symptoms. If you have or are planning on giving up caffeine, here's what symptoms to...
The Complete Guide to Starbucks Caffeine
The Complete Guide to Starbucks Caffeine
Coffee
Complete caffeine content of Starbucks drinks. Coffee, tea, refreshers, frappuccinos, iced coffee, via, and bottled coffee. UK and Europe amounts...
20 Awesome Benefits of Quitting Caffeine or Coffee
20 Awesome Benefits of Quitting Caffeine or Coffee
Caffeine Addiction / Coffee
20 great benefits you may reap from quitting caffeine in coffee, tea, energy drinks, or soda. Your long-term good health...