Hydration reminder planner
Estimate your daily water target based on your weight and activity level, then generate a schedule of reminders spread between your wake-up time and your bedtime to drink regularly throughout the day.
How it works
This tool estimates a daily water target based on your weight and activity level (35 ml per kg of body weight, adjusted upward according to activity), then distributes this target into reminders spaced regularly between your wake-up time and your bedtime, with a suggested amount to drink at each reminder.
How is the daily target calculated?
The base calculation uses 35 ml of water per kilogram of body weight, a common estimate for an adult with moderate activity. This total is then increased by 15% for a moderate activity level and by 30% for a high activity level, to compensate for the additional fluid losses caused by exertion or heat.
Does the schedule account for food or other drinks?
No, this schedule focuses solely on water to drink at regular intervals; it does not subtract the water intake from food or other beverages. This tool is purely informational: it does not replace the advice of a healthcare professional, especially in the case of kidney disease, heart conditions or a specific fluid restriction.
The calculation and schedule generation are done entirely in your browser: no data entered is transmitted to a server.