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About this tool
School-day water schedule sized to age, weather and activity, using EFSA water intake values and AAP activity guidance.
Kids Hydration Reminder builds a timed school-day drinking schedule from a child's age, the weather and how much sport they will do. The baseline comes from EFSA's 2010 Adequate Intake values for total water — 1.3 L a day at ages 2-3, 1.6 L at 4-8, and 1.9-2.1 L at 9-13 — of which roughly three quarters has to come from drinks because the rest arrives in food. Extra fluid for activity follows the American Academy of Pediatrics guidance of 100-250 mL every 20 minutes for 9-12 year olds and 1.0-1.5 L an hour for adolescents, with hotter weather moving the figure to the top of that range.
Open Kids Hydration Reminder on AltFTool — it loads instantly in your browser.
Enter the values you already know.
Fine-tune the options to match your scenario.
Read the result and use it in your planning or reporting.
Every reminder is placed against your child's actual wake, school and bedtime hours.
Sport fluid is calculated per 20-minute block from AAP figures instead of a flat daily number.
Tells you how many refills of your bottle size the school hours actually need.
EFSA's adequate intake for total water is 1.3 L a day at ages 2-3, 1.6 L at 4-8, 1.9 L for girls and 2.1 L for boys at 9-13, and 2.0-2.5 L from 14. About 20-30% of that arrives in food, so the drinks target is roughly three quarters of those figures.
The American Academy of Pediatrics suggests 100-250 mL every 20 minutes of activity for children aged 9-12, and 1.0-1.5 L per hour for adolescents. Use the higher end in hot or humid conditions and encourage drinking before thirst appears.
Pale straw-coloured urine is the simplest daily check; dark yellow urine, dry lips, headache, unusual tiredness or fewer than four toilet trips a day suggest more fluid is needed. Sunken eyes, no tears when crying or drowsiness need medical attention the same day.
Yes, all drinks contribute to fluid intake, but water and plain milk are the recommended everyday choices. Sugary drinks and juice add free sugars and increase decay risk, so most paediatric guidance limits juice to a small glass with a meal.