Can I drink too much water?

Yes, overhydration (hyponatremia) is rare but dangerous; let thirst guide you beyond the baseline.

Do other beverages count?

Tea, coffee, and milk count toward hydration, though water is the best zero-calorie option.

How do I know if I'm hydrated?

Pale yellow urine is the best indicator of adequate hydration.

How Much Water Should a 200-Pound Person Drink Daily?

The Short Answer

A 200-pound person should drink approximately 100 ounces (about 3 liters) of water per day. Active individuals or those in hot climates may need 120-150 ounces.

The Detailed Breakdown

Water intake calculated using the half-body-weight-in-ounces rule with activity adjustments.

Calculation	Value	Assumptions
Baseline Intake	100 oz/day	0.5 oz per pound of body weight
Active/Hot Climate	133 oz/day	0.67 oz per pound with exercise or heat

Key Assumptions

Baseline formula is half your body weight in ounces.
Exercise adds 16-20 oz per 30 minutes of activity.
About 20% of daily water comes from food.

Adjust for Your Situation

Drink at least 100 oz of water daily, more if you exercise or live in a warm climate.

Use the Free Calculator

What Affects This Result

Exercise

Sweat losses during exercise can reach 1-2 liters per hour.

Climate

Hot and humid environments increase sweat rate and water needs.

Caffeine Intake

Caffeine has a mild diuretic effect that slightly increases fluid loss.