Caffeine in coffee
Coffee has 95 mg of caffeine per 1 cup (8 fl oz) (237 g). Per 100 g it contains 40 mg.
Caffeine by portion size
| Portion | Weight | Caffeine (mg) |
|---|---|---|
| 1 fl oz | 30 g | 12 |
| 6 fl oz | 178 g | 71 |
| 1 cup (8 fl oz) | 237 g | 95 |
| 100 g | 100 g | 40 |
Other forms of coffee
| Form | Per 100 g | Per serving |
|---|---|---|
| Espresso | 212 mg | 212 mg (100 g) |
About caffeine
Caffeine is a stimulant found in coffee, tea, cocoa and energy drinks. There is no Daily Value; the FDA cites 400 mg a day as an amount not generally associated with negative effects in healthy adults. Values are milligrams per serving.
Foods with more caffeine than coffee
- Beverages, coffee (brewed, prepared with tap water): 95 mg per 1 cup (8 fl oz)
- Beverages, Energy Drink with carbonated water and high fructose corn syrup: 91 mg per 8 fl oz
- Beverages, Energy Drink (Monster, fortified with vitamins C, B2, B3, B6, B12): 79 mg per 8 fl oz
- Beverages, Energy drink (FULL THROTTLE): 79 mg per 8 fl oz
- Beverages, Energy drink (ROCKSTAR): 79 mg per 8 fl oz
All foods high in caffeine · Full coffee nutrition facts
Frequently asked questions
How much caffeine is in coffee?
Coffee has 95 mg of caffeine per 1 cup (8 fl oz) (237 g). Per 100 g it contains 40 mg.
Is coffee high in caffeine?
There is no Daily Value for caffeine; coffee provides 95 mg per serving. See the ranking for how that compares.
Source: USDA FoodData Central #171890.
Nutrient values are from USDA FoodData Central (SR Legacy, April 2018; Foundation Foods, April 2026) and shown per serving as described on each page. %DV uses the FDA Daily Values for adults and children aged 4 and over. This is nutrition data for general information, not medical or dietary advice; talk to a clinician or registered dietitian about your own needs. How the numbers are calculated.