How much caffeine is too much?
The FDA and the European Food Safety Authority both put the limit for most healthy adults at about 400mg of caffeine a day. EFSA adds that single doses up to 200mg are not a concern, and the NHS and other health bodies advise no more than 200mg a day in pregnancy. Children and teenagers should have much less, and sensitivity varies from person to person.
12 drinks on this list have 200mg or more in a standard size, a full single dose in one cup. The strongest, Blonde Roast - Starbucks® Sunsera from Starbucks, has 315 mg, or 79% of the 400mg daily limit.
Why caffeine varies so much
Caffeine depends on how a drink is made and how big it is. Brewed and cold-brew coffee are often stronger than espresso drinks of the same size, because a latte gets its caffeine from a fixed number of shots while brewed coffee scales with the cup. Tea, matcha and fruit drinks made with green coffee extract sit lower, and sodas lower still.
Every value is for the standard size and recipe. Sizing up or adding an extra shot adds caffeine, and the item page shows every size.
How to use this chart
The chart starts with the strongest drink across these chains. Re-sort by caffeine ascending to find gentler options (6 drinks have under 100mg), or by calories and sugar to see the trade-offs. Drinks with no caffeine aren’t listed.