Calculate your recommended daily water intake based on body weight and activity level.
Calculate your recommended daily water intake based on body weight and activity level.
Water (L) = Weight × 0.033 + (Exercise/30 × 0.35)
70 kg person with 60 min exercise → ~3.01 L/day (about 12 glasses).
Enter your values in the fields above and click "Calculate" to get instant results. All calculations happen in your browser — nothing is sent to any server.
What is Water Intake Calculator?
Calculate your recommended daily water intake based on body weight and activity level.
What formula does this use?
This calculator uses: Water (L) = Weight × 0.033 + (Exercise/30 × 0.35)
Is this calculator free?
Yes! All calculators on CalcNest AI are 100% free with no account required.
Is my data safe?
Absolutely. All calculations run locally in your browser. We never store or transmit your input data.