Water Intake Tracker
Work out a daily water target from your weight and activity, then log intake with a streak history.
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Log a drink
A rule of thumb, not a prescription
Fluid needs vary a great deal with body size, activity, heat, altitude, diet and any medical conditions — and food contributes a meaningful share of your intake too. Thirst is a reasonable guide for most healthy adults. If you have a kidney or heart condition, or take medication that affects fluid balance, follow your clinician's advice over any calculator.
Your target
70 kg
Suggested daily target
2,660 ml
About 33 ml per kg, plus activity and climate.
ml
Leave empty to use the suggestion above.
About the water intake tracker
Estimates a sensible daily fluid target from body weight, activity level and climate, then lets you log drinks against it with quick-add buttons for a glass, a bottle or a custom amount. A ring shows progress toward the day's goal, and a history strip tracks the last two weeks so you can see a streak forming. Logs are kept locally and reset each day.
This tool runs entirely in your browser. Nothing you type is uploaded, and it keeps working with no connection at all — including as an installed app.