Staying hydrated is easier when you can see your progress. Enter your weight, exercise and whether it is hot, and get a sensible daily water goal. Tap “+ Drink” each time you finish a glass or bottle, watch the ring fill up, and look back at the last week. Turn on reminders to get a gentle sound (and a notification, if you allow it) at regular times through the day.
loading toolHow to use the water reminder
- Fill in your weight, exercise and extra needs to see your daily goal.
- Pick your usual glass or bottle size.
- Tap “+ Drink” each time you finish one (Undo if you tapped by mistake).
- Open Reminders, choose how often and between which hours, and press Start reminders.
Good to know
- A glass of water with each meal and one between meals gets most people close to their goal.
- People with kidney, heart or liver conditions may be told to limit fluids: follow that advice instead of this goal.
Questions
How is my water goal worked out?
About 35 ml for every kilogram of body weight, plus roughly 350 ml for every 30 minutes of exercise, 500 ml more in hot weather, and extra when pregnant (300 ml) or breastfeeding (700 ml). It is a guide for healthy adults: thirst, pale-yellow urine and your doctor’s advice matter more than any number.
Will reminders work when my phone is locked?
Web pages are paused by most phones when the screen is locked, so reminders only work while the page is open. On a computer, a background tab is fine. For all-day phone reminders, add the times shown to your phone’s alarm or calendar.
Does tea, milk or food count?
Yes. Milk, tea, soups, fruit and vegetables all add water. Many people get around a fifth of their water from food.
Where is my data kept?
Only in this browser on this device. Nothing is uploaded to us or anyone else. Clearing your browser data removes it, so copy or download anything important.
Is my data private?
Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.
Is it free?
Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.
