Does it count?
Does tea count as water?
Quick answer
Tea contributes to beverage intake. Caffeine varies by tea, brewing and serving size, so do not subtract a fixed percentage from each cup.
The short answer
Counts
Tea is nearly all water and hydrates well.
Tea is brewed with water and contributes fluid. Black and green teas contain variable caffeine; plain chamomile or peppermint infusions are usually caffeine-free, but blends can differ. Check the ingredients.
| Serving | ml | The short answer |
|---|---|---|
| 1 mug (240 ml) | 240 ml | Tea is nearly all water and hydrates well. |
| 1 cup (240 ml) (Does coffee count as water) | 240 ml | Coffee hydrates about as well as water for habitual drinkers. |
| 1 glass (240 ml) (Does milk count as water) | 240 ml | Counts as a beverage; short-term retention is a separate research measure. |
| 1 can (355 ml) (Does soda count as water) | 355 ml | Counts as fluid, but the sugar makes it a poor hydrator. |
The bottom line
Tea of any kind is a fine way to reach your water goal — especially herbal varieties in the evening.
Whatever drinks you choose, the goal is the same: hit your total daily fluid target, mostly from water. Use the calculator to find that number for your body.
Find your daily water goal
Now you know what counts — see how much you actually need based on your weight, activity, and climate.
Frequently asked
Does herbal tea count as water?
Yes. Herbal teas like chamomile, peppermint, and rooibos are caffeine-free and essentially flavoured water, so they count fully toward your daily water intake.
Does green tea dehydrate you?
Green tea contributes fluid. Caffeine depends on the product, leaf amount, steeping and serving size; it is not a universal milligram value or a reason to ignore the drink volume.
Is iced tea as hydrating as hot tea?
Plain iced tea is just as hydrating. The catch is that many bottled iced teas are loaded with added sugar, which adds empty calories without changing how well they hydrate you.
Sources
- 1.Killer, Blannin & Jeukendrup, PLOS ONE 2014 — A three-day crossover trial in 50 habitual male coffee drinkers compared four 200 ml coffee servings with water and found no significant differences in hydration markers; not a general caffeine safety threshold.
- 2.U.S. National Academies (IOM/NAM), 2005 — Adequate total water intake of about 3.7 L/day for men and 2.7 L/day for women, including water from food and all beverages.Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate, Summary: water adequate intakes; drinks and food