Does it count?
Does juice count as water?
Quick answer
Juice contributes fluid, but sugars and serving size matter. Check the product label and count the volume consumed; there is no universal water percentage or sugar dose for every juice.
The short answer
Counts (in moderation)
Counts, but watch the sugar in fruit juice.
Juice is made by extracting the liquid from fruit or vegetables, so it's naturally water-rich. The difference between juice and whole fruit is that the fibre is gone, which makes the natural sugars hit your bloodstream faster. As a small part of your fluid intake, juice is fine; as the main event, it adds up quickly in sugar.
| Serving | ml | The short answer |
|---|---|---|
| 1 glass (240 ml) | 240 ml | Counts, but watch the sugar in fruit juice. |
| 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 mug (240 ml) (Does tea count as water) | 240 ml | Tea is nearly all water and hydrates well. |
The bottom line
Juice contributes to fluid intake. Its calories and sugar still matter; the table does not claim a fixed water-equivalent volume.
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
Is fruit juice as hydrating as water?
Juice contributes beverage volume, but sugar, acidity and energy vary by product. Check the serving size and label; the fluid total does not make juice nutritionally equivalent to plain water.
Does vegetable juice count as water?
Yes. Vegetable juices like tomato or cucumber juice are high in water and electrolytes (especially potassium) and lower in sugar than fruit juices, making them a particularly good hydrating choice.
Is diluted juice a good hydration drink?
Diluting juice 50:50 with water roughly halves the sugar while keeping the flavour, which makes it a popular low-sugar sports-drink alternative for kids and athletes.
Sources
- 1.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
- 2.Maughan et al., Beverage Hydration Index, AJCN 2016 — A controlled short-term study in 72 healthy, hydrated men compared urine output after 1 L of different drinks. Milk and ORS showed greater short-term retention; BHI is not a conversion to effective beverage volume or proof of long-term benefit.AJCN 103(3):717–723; abstract, methods and results (2-hour BHI and 4-hour cumulative urine)