·
Estimate how much to drink per day from EFSA reference values, water from food and sweat lost during exercise.

Was this calculator helpful?
values from the form
core formula
allowance or rates
instant estimate
woda ogółem = wartość EFSA (kobiety 2,0 l, mężczyźni 2,5 l) + potpot = czas wysiłku [h] × tempo pocenia [l/h]do wypicia = woda ogółem − woda z jedzeniaWorked example
Worked example using the form's default values.
It includes the inputs and adjustments shown in the form and formula section.
No. It is an educational estimate; verify prices, product data and legal parameters before making a decision.
Yes. Change one input at a time or save several scenarios on the page.
Only when this calculator's privacy policy allows it. Sensitive inputs are never placed in the page URL.
No. The calculation runs locally in your browser.
Daily hydration calculator provides a quick, transparent estimate with inputs you control.