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Daily Water Target
2.52 L
85.2 fl oz · 10.7 cups · 11 glasses (8 oz each)
Minimum (80%)
2.02 L
68.2 fl oz
Maximum (120%)
3.02 L
102.3 fl oz
Breakdown
Hydration Tips
Note: These are general guidelines based on the Institute of Medicine recommendations. Individual needs vary. Consult a healthcare professional for personalized advice.
Daily Water Intake Calculator calculates your personalized daily water intake target in oz, ml, cups, liters, and glasses based on body weight, activity level, and climate using the half-bodyweight-in-ounces guideline with adjustments.
Daily Water Intake Calculator is a high-performance utility designed to help users streamline their workflow. Built with modern web technologies, it ensures fast processing times and high-quality outputs directly in your browser.
Base water target = body weight (lbs) × 0.5 oz/day, or body weight (kg) × 30 ml/day. Activity adjustments: sedentary +0%, light +10%, moderate +20%, active +30%, very active +40%. Climate adjustments: temperate +0%, warm +5%, hot +15%. Pregnancy adds ~300 ml/day; breastfeeding adds ~700 ml/day. These are general guidelines; medical conditions, medications, and altitude can significantly affect actual needs.
A common guideline is to drink half your body weight in ounces. For example, a 160 lb person would aim for 80 oz (about 10 cups) per day. Activity level, climate, and health conditions all affect your actual needs.
Yes, caffeinated beverages like coffee and tea do contribute to hydration, though they have a mild diuretic effect. Most nutrition guidelines count them as part of total fluid intake.
The simplest indicator is urine color. Pale yellow means well-hydrated. Dark yellow or amber means you need more water. Thirst is also a reliable signal, though it can lag slightly behind actual needs.
Yes. Add about 12 oz (350 ml) for every 30 minutes of moderate exercise. In hot weather, increase that further. Weigh yourself before and after exercise — each pound lost equals about 16 oz of fluid to replace.
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