Daily Water Intake Calculator - Hydration Goal in Oz & Liters (2026)
Calculate your daily optimal water intake based on body weight, daily exercise duration, and climate temperature in ounces (oz) and liters.
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⚙️ Configuration & Inputs
lbs
mins
📊 Results & Analysis
Recommended Daily Water Intake
113 fl oz
Approximately 3.3 Liters • 14 Glasses
| Baseline Requirement | 85 oz (50% body weight) |
| Exercise Sweat Compensation | +18 oz |
| Standard 8-oz Glasses | 14.1 Glasses |
| Metric Volume Equivalent | 3.34 Liters |
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The Science of Daily Hydration
The baseline rule for daily hydration recommended by sports medicine is to consume 0.5 to 1.0 fluid ounces of water per pound of body weight, adding 12 ounces for every 30 minutes of vigorous sweating and cardiovascular exercise.
Frequently Asked Questions
Yes. Excess fluid intake without adequate electrolytes can dilute blood sodium levels, leading to a condition called hyponatremia. Drink evenly throughout the day rather than chugging large volumes at once.