Caffeine in tea: black, green, white, oolong and herbal
How much caffeine is in black, green, oolong, white, iced and bottled tea, which teas have none, and how tea compares with coffee. Every number is sourced.
The 18 teas in our chart range from 2.4 mg (Decaf black tea, 8 fl oz cup (237 g)) to 72 mg (Iced tea (brewed, unsweetened), Small drink (360 g)), and 2 have no caffeine at all. For reference, Black tea has 47.4 mg per 8 fl oz cup (237 g).
Tea caffeine chart
Sorted from least to most caffeine. “Latest time” is when one serving would still leave no more than 50 mg at an 11:00 PM bedtime with average metabolism (how we calculate). Open a drink for its source, sizes and the fast-to-slow range.
| Drink | Serving | Caffeine | Strength | Latest time |
|---|---|---|---|---|
| Chamomile tea | 1 cup (240 g) | 0 mg | – | No caffeine |
| Herbal tea | 1 cup (240 g) | 0 mg | – | No caffeine |
| Decaf black tea | 8 fl oz cup (237 g) | 2.4 mg | 1 mg per 100 ml | No cutoff for one |
| Brisk Lemon Iced Tea | 12 fl oz can | 11 mg | 3.1 mg per 100 ml | No cutoff for one |
| AriZona Green Tea | 22 oz can | 15–18 mg | 2.5 mg per 100 ml | No cutoff for one |
| White tea | 6 fl oz cup | 15–20 mg | 9.9 mg per 100 ml | No cutoff for one |
| Lipton Iced Tea Lemon | 16.9 fl oz bottle | 21 mg | 4.2 mg per 100 ml | No cutoff for one |
| Instant tea | 8 fl oz serving (238 g) | 26.2 mg | 11 mg per 100 ml | No cutoff for one |
| Green tea | 1 cup (245 g) | 29.4 mg | 12 mg per 100 g | No cutoff for one |
| Bubble tea | 1 drink, any size (435 g) | 34.8 mg | 8 mg per 100 g | No cutoff for one |
| Snapple Peach Tea | 16 fl oz bottle | 37 mg | 7.8 mg per 100 ml | No cutoff for one |
| Oolong tea | 1 cup (240 g) | 38.4 mg | 16 mg per 100 g | No cutoff for one |
| Kombucha | 12 fl oz can or bottle (372 g) | 40.9 mg | 12 mg per 100 ml | No cutoff for one |
| Black tea | 8 fl oz cup (237 g) | 47.4 mg | 20 mg per 100 ml | No cutoff for one |
| Bottled black iced tea | 16 fl oz bottle (473 g) | 52 mg | 11 mg per 100 ml | 9:58 PM |
| Pure Leaf Sweet Tea | 18.5 fl oz bottle | 54 mg | 9.9 mg per 100 ml | 9:42 PM |
| Yerba mate | 6 fl oz cup | 40–80 mg | 34 mg per 100 ml | 8:56 PM |
| Iced tea (brewed, unsweetened) | Small drink (360 g) | 72 mg | 20 mg per 100 g | 7:37 PM |
Caffeine-free teas
Common questions
Does green tea have less caffeine than black tea?
Green tea has less caffeine than black tea per 100 g (12 vs 20 mg). Green tea: 29.4 mg per 1 cup (245 g); Black tea: 47.4 mg per 8 fl oz cup (237 g).
Does white tea have less caffeine than green tea?
White tea has less caffeine than green tea per typical serving. White tea: 15–20 mg per 6 fl oz cup; Green tea: 29.4 mg per 1 cup (245 g).
Which has more caffeine, coffee or tea?
Brewed coffee has more caffeine than black tea per 8 fl oz cup (237 g): 94.8 mg vs 47.4 mg.
Which teas have no caffeine?
In our chart: Chamomile tea, Herbal tea. Each drink page links to the source of its figure; check the label too, because recipes change.
General information, not medical advice
If you feel unwell after caffeine — for example chest pain, a fast or irregular heartbeat that does not settle, fainting, confusion or trouble breathing — get urgent medical help. If you are pregnant, take medication or have a heart, liver or anxiety condition, ask a doctor or pharmacist what amount is right for you.
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