Water Reminder and Intake Tracker

How much water is enough

There is no single right amount. The U.S. National Academies set an adequate total water intake of about 3.7 litres a day for men and 2.7 litres for women, counting all drinks and the water in food; drinks usually supply about 80% of it. Heat, exercise, illness, pregnancy, and breastfeeding raise the need.

For most healthy people, thirst is a good guide and pale yellow urine a sign of drinking enough. A goal and reminders help when you tend to forget, for example during long stretches at a desk. People with heart or kidney conditions may have been told to limit fluids; their doctor's advice comes first.

What counts, and how the reminder works

Water, tea, coffee, milk, and other drinks all count, and so does food with a lot of water, such as fruit, vegetables, and soup. Sugary drinks add calories, so water is the simplest everyday choice. A US fluid ounce is 29.57 ml, so an 8 oz glass is about 237 ml.

Reminders count from your last drink and only ring within the hours you choose: in the tab while it is open, and as notifications with it closed if you switch that on. Logging a glass pushes the next one back, and once the goal is reached they can stop for the day. For breaks from the screen itself, try the eye break reminder.

How to use it

1. Set a daily goal and your usual glass size.
2. Tap + Glass each time you drink, or add another amount.
3. Turn on reminders and choose how often and between which hours.

Privacy & limitations

Your drinks, goal, and settings are kept in this browser's storage for two weeks. Only if you switch on reminders with the tab closed does the page send TOEA's server this browser's push address and the reminder times, never what you drink; each is deleted once sent or cancelled.