Coffee & Espresso · Drink database
Caffeine in Dunkin' Dunkin' Iced Coffee
297 mg
per medium 24 oz Very high
≈ 12.4 mg per fl oz
The ceiling is in sight. The ceiling is not a challenge.
Every serving size
| Serving | Caffeine | % of 400 mg day | Finish by (10:30 PM bed) |
|---|---|---|---|
| Medium 24 oz (24 oz) | 297 mg | 74% | 9:38 AM |
Cutoff column: average metabolism (5 h half-life), ~50 mg bedtime threshold — run it with your bedtime →
How it compares
Dunkin' Dunkin' Iced Coffee 297 mg
Green tea (8 oz) 28 mg
Black tea (8 oz) 47 mg
Brewed coffee (8 oz) 96 mg
Monster (16 oz) 160 mg
Bang (16 oz) 300 mg
Over half the FDA daily limit in one serving. The tracker will flag stacking a second one — and the cutoff calculator will push this earlier than you expect. At 297 mg per medium 24 oz, this drink is 74% of the FDA's 400 mg daily ceiling for healthy adults.
The famous one — Dunkin' iced mediums are 24 oz, and the caffeine follows.
Source: Manufacturer label · confidence: high
Make it useful
Log this in the tracker Check my cutoff time
Related reading: coffee vs tea vs energy drinks · when to stop before bed