Does it count?
Does sparkling water count as water?
Quick answer
Yes, sparkling water counts fully toward your daily water intake. It is simply plain water with dissolved carbon dioxide gas, so it hydrates you just as well as still water. The bubbles don't change the water content, and sparkling water with no added sugar or sodium is a perfectly healthy hydration choice.
The short answer
Counts fully
Sparkling water hydrates just as well as still water.
Carbonated (sparkling) water is identical to still water in its hydration value — the carbon dioxide that makes the bubbles doesn't subtract anything from the water. The only difference is mouthfeel. If plain water bores you, sparkling water is a great way to drink more.
| Serving | ml | The short answer |
|---|---|---|
| 1 glass (355 ml) | 355 ml | Sparkling water hydrates just as well as still water. |
| 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
Sparkling water is just water with bubbles. Drink it freely — it counts fully toward your goal.
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 sparkling water as hydrating as regular water?
Yes. Studies comparing still and sparkling water find no meaningful difference in hydration. The carbonation doesn't change how much water reaches your cells.
Does sparkling water leach calcium from your bones?
No, that's a myth. Plain sparkling water does not weaken bones. The bone-density concerns in older research were tied to cola drinks, not to plain carbonated water.
Is flavoured sparkling water as good as plain?
Mostly yes, as long as it has no added sugar. Naturally flavoured sparkling waters hydrate as well as plain. Check the label — 'sparkling water' with juice or syrup added is closer to soda.
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.Mayo Clinic — General guidance of roughly 2.7–3.7 L of total fluids a day, with thirst and pale-yellow urine as everyday checks.