Last updated: March 2, 2026 by Maria Gonzalez

How Much Water Should You Drink Daily?

Formula

A common guideline is to drink half your body weight in ounces per day. A 160-lb person should aim for 80 oz (about 2.4 liters) of water daily.

Activity level, climate, and health conditions all affect hydration needs. Increase intake during exercise, hot weather, and illness.

Common use cases:

  • Personal hydration goals
  • Athletic performance optimization
  • Health and wellness tracking

Frequently Asked Questions

MG

Maria Gonzalez

Registered Dietitian, RD, MPH

Maria is a Registered Dietitian with a Master's in Public Health. She focuses on evidence-based nutrition assessment tools including BMI, calorie calculations, and body composition analysis.

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