Dunkin' caffeine chart: every drink and size
A medium Dunkin' hot coffee has about 210 mg of caffeine, a medium iced coffee 297 mg and a medium latte 166 mg. Iced drinks at Dunkin' come in much bigger cups than hot ones, a 24 oz medium against a 14 oz medium, so the iced version of the same coffee usually carries more caffeine.
The chart below lists the popular drinks in all three sizes, plus the latest you could have a medium and still fall asleep at 11 pm.
Dunkin' caffeine by drink and size
| Drink | Small | Medium | Large | Latest for 11 pm bed |
|---|---|---|---|---|
| Energy Cold Brew | 292 mg | 378 mg | 465 mg | before 5 am |
| Iced Coffee | 198 mg | 297 mg | 396 mg | 6:19 am |
| Frozen Coffee | 196 mg | 295 mg | 393 mg | 6:22 am |
| Americano | 237 mg | 284 mg | 371 mg | 6:41 am |
| Macchiato | 237 mg | 284 mg | 371 mg | 6:41 am |
| Cold Brew | 174 mg | 260 mg | 347 mg | 7:25 am |
| Hot coffee (brewed) | 180 mg | 210 mg | 270 mg | 9:10 am |
| Latte, hot or iced | 118 mg | 166 mg | 252 mg | 11:06 am |
| Cappuccino | 118 mg | 166 mg | 252 mg | 11:06 am |
| Dark Roast (brewed) | 117 mg | 164 mg | 235 mg | 11:12 am |
| Sparkd' Energy | 96 mg | 144 mg | 192 mg | 12:16 pm |
| Hot tea | 90 mg | 90 mg | 180 mg | 4:08 pm |
| Dunkaccino | 58 mg | 85 mg | 119 mg | 4:36 pm |
| Vanilla Chai | 54 mg | 80 mg | 107 mg | 5:06 pm |
| Iced tea | 45 mg | 67 mg | 90 mg | 6:34 pm |
| Decaf coffee | 7 mg | 10 mg | 15 mg | any time |
Figures are the ones Dunkin' publishes for its US menu. Hot drinks come in 10, 14 and 20 oz; iced drinks in 16, 24 and 32 oz. Extra Charged coffee, where your store has it, adds about 20 percent.
The last column is worked out the same way as everything else on this site: caffeine peaks about 45 minutes after you drink it and halves roughly every 5.7 hours. The time is when one medium on its own would be down to 40 mg by 11 pm, the level we treat as low enough to sleep on. "Before 5 am" means a medium that strong does not get there from any normal morning order.
Iced coffee is the big one
Most people think of iced coffee as the lighter order. At Dunkin' it is the opposite: a medium iced coffee has 297 mg against 210 mg for a medium hot coffee, because the cup holds 24 oz instead of 14. A large iced coffee, about 396 mg, is nearly the full 400 mg daily limit in one drink.
Cold brew lands between the two at 260 mg for a medium, and Energy Cold Brew, with added caffeine, at 378 mg. Frozen Coffee is close to iced coffee, 295 mg, which surprises people who order it as a treat.
Lattes, Americanos and macchiatos
Dunkin' espresso drinks are built on shots of about 118 mg each, noticeably stronger than the 75 mg Starbucks shot. A small Latte or Cappuccino has one shot, 118 mg; a medium 166 mg; a large 252 mg.
An Americano and a macchiato get more espresso for the same size, which is why a medium of either comes to about 284 mg, more than a medium hot coffee. If you switch from drip to an Americano to cut back, at Dunkin' it does the opposite.
The low-caffeine end of the menu
A medium Dunkaccino has about 85 mg, a medium Vanilla Chai 80 mg and a medium iced tea 67 mg. Hot chocolate is about 13 mg and decaf about 10 mg in a medium, both fine in the evening.
How late can you drink Dunkin'?
For an 11 pm bedtime, a medium hot coffee should be finished by about 9 am and a medium iced coffee by about 6:20 am. A medium latte works until about 11 am, a small latte until about 2 pm, and a medium Vanilla Chai until about 5 pm.
These times are for one drink on its own. A medium iced coffee at 2 pm still leaves about 100 mg at 11 pm, more than two and a half times the level we treat as fine for sleep. The bedtime calculator adds up every drink of your day, and the how long does caffeine last guide explains the curve behind the times.
Dunkin' against Starbucks
Size for size, Starbucks brewed coffee is stronger and Dunkin' espresso drinks are slightly stronger. Iced coffee is the main exception, because the Dunkin' cup is so much bigger. The whole Starbucks menu is in the Starbucks caffeine chart.
| Drink | Starbucks grande | Dunkin' medium |
|---|---|---|
| Hot brewed coffee | 310 mg | 210 mg |
| Cold brew | 205 mg | 260 mg |
| Iced coffee | 165 mg | 297 mg |
| Latte | 150 mg | 166 mg |
| Americano | 225 mg | 284 mg |
| Chai latte | 95 mg | 80 mg |
Cira is not affiliated with Dunkin'. Recipes and cup sizes change by store and over time, so check the Dunkin' app for the drink in front of you; the chart here is the menu as published in 2026.
Sources
- Dunkin'. Nutrition information, caffeine listed per drink and size.
- Caffeine Informer. Dunkin' Donuts caffeine content guide.
- US Food and Drug Administration. Spilling the Beans: How Much Caffeine Is Too Much?
Common questions
How much caffeine is in a medium Dunkin' iced coffee?
About 297 mg in a medium, which at Dunkin' is a 24 oz cup. A small (16 oz) has 198 mg and a large (32 oz) about 396 mg, almost the whole 400 mg daily limit in one cup.
Does Dunkin' iced coffee have more caffeine than hot?
Yes, mostly because the cup is bigger. A medium hot coffee is 14 oz and about 210 mg; a medium iced coffee is 24 oz and about 297 mg. Ounce for ounce they are close.
What is the strongest drink at Dunkin'?
Energy Cold Brew, at about 378 mg in a medium and 465 mg in a large. Among the regular drinks, a large iced coffee at 396 mg and a large frozen coffee at 393 mg come next.
How much caffeine is in a Dunkin' latte?
About 166 mg in a medium, hot or iced, and 118 mg in a small. Dunkin' espresso shots are stronger than Starbucks ones, so a medium Dunkin' latte has slightly more caffeine than a grande Starbucks latte at 150 mg.
Which Dunkin' drinks have the least caffeine?
Decaf coffee has about 10 mg in a medium, hot chocolate about 13 mg. A medium iced tea has 67 mg, a Vanilla Chai 80 mg and a Dunkaccino 85 mg.
