Daily Water Hydration Calculator

Personalized fluid intake requirements based on body mass and exercise intensity.

Input Parameters

Weight (kg)

Active Exercise per Day (Minutes)

Recommended Daily Water Intake

2.83 л

Equivalent to ~11 standard 250ml glasses of water per day.

175 available

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Add or extract Value Added Tax (VAT) with international country presets.

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Gross to net salary with income tax, social contributions and deductions, monthly and annual.

Daily water need from body weight plus extra for exercise minutes, shown in liters and standard glasses.

How much water daily?

Roughly 30–35 ml per kg plus ~350 ml per 30 minutes of exercise; the calculator personalizes it.

Does coffee count?

Moderate coffee and tea hydrate, but plain water remains the baseline.

Can you drink too much?

Yes — extreme overhydration dilutes sodium; drink to thirst plus activity needs.