Caffeine content for coffee, tea, soda and more

By Mayo Clinic Staff

If you're like most adults, caffeine is a part of your daily routine. But do you know the caffeine content of your favorite drink?

You may want to take a look at just how much caffeine you get in a typical day, especially if you're bothered by headaches, restlessness or anxiety. If your caffeine habit totals more than 500 milligrams (mg) a day, you may want to consider cutting back.

With the growing popularity of energy drinks, many parents have become concerned about how much caffeine their kids are getting. The American Academy of Pediatrics recommends that adolescents get no more than 100 mg of caffeine a day. Younger children shouldn't drink caffeinated beverages on a regular basis.

Check the charts below to see the caffeine content in popular drinks, sweets and medications. One note about the numbers: Use them as a guide. The actual caffeine content of the same coffee drink can vary from day to day — even at the same coffee shop — because of various factors, such as roasting and grinding as well as brewing time. The caffeine content of tea also is affected by how long it's brewed.

Coffee

Type of coffee Size* Caffeine✝

Adapted from Journal of Food Science, 2010; Pediatrics, 2011; USDA National Nutrient Database for Standard Reference, Release 26; Journal of Analytical Toxicology, 2006; Starbucks, 2014; Food and Chemical Toxicology, 2014; Keurig, 2014

*Sizes are listed in fluid ounces (oz.) and milliliters (mL).

✝Caffeine is listed in milligrams (mg).

Brewed 8 oz. (237 mL) 95-200 mg
Brewed, decaffeinated 8 oz. (237 mL) 2-12 mg
Brewed, single-serve varieties 8 oz. (237 mL) 75-150 mg
Brewed, single-serve varieties, decaffeniated 8 oz. (237 mL) 2-4 mg
Espresso, restaurant-style 1 oz. (30 mL) 47-75 mg
Espresso, restaurant-style, decaffeinated 1 oz. (30 mL) 0-15 mg
Instant 8 oz. (237 mL) 27-173 mg
Instant, decaffeinated 8 oz. (237 mL) 2-12 mg
Specialty drink (latte or mocha) 8 oz. (237 mL) 63-175 mg

Tea

Type of tea Size* Caffeine✝

Adapted from Journal of Food Science, 2010; Pediatrics, 2011; Journal of Analytical Toxicology, 2008; USDA National Nutrient Database for Standard Reference, Release 26; Journal of Analytical Toxicology, 2006; Starbucks, 2014; Food and Chemical Toxicology, 2014

*Sizes are listed in fluid ounces (oz.) and milliliters (mL).

✝Caffeine is listed in milligrams (mg).

Brewed tea    
Black tea 8 oz. (237 mL) 14-70 mg
Black tea, decaffeinated 8 oz. (237 mL) 0-12 mg
Green tea 8 oz. (237 mL) 24-45 mg
Iced tea    
Instant, prepared with water 8 oz. (237 mL) 11-47 mg
Ready-to-drink, bottled 8 oz. (237 mL) 5-40 mg
May. 13, 2014 See more In-depth