learn.howToCalculate
learn.whatIsHeading
A water intake calculator estimates your daily hydration needs based on body weight and activity level. The general guideline is 35ml per kg of body weight, adjusted upward for exercise and heat.
공식
liters_per_day = body_weight_kg × 0.033; or fl_oz = weight_lbs / 2
- kg
- Body weight (kg) — Current body weight in kilogrammes
- L
- Water per day (L) — Recommended daily water intake
- lbs
- Body weight (lbs) — Current body weight in pounds
단계별 가이드
- 1Base intake = body weight (kg) × 35 ml
- 2Sedentary adjustment: ×1.0, Moderate: ×1.15, Active: ×1.35
- 3Add 500ml per 30 minutes of intense exercise
- 4~20% of daily water comes from food
풀어진 예시
입력
70kg person, moderate activity
결과
~2.8 litres/day (11.2 glasses)
입력
90kg active athlete
결과
~4.25 litres/day
입력
55kg sedentary person
결과
~1.9 litres/day
자주 묻는 질문
How much water should I drink daily?
General rule: 33 ml per kg of body weight. For 70 kg person: 2.3 L (roughly 8–10 cups). Varies by activity, climate, health.
Is there a simple rule?
Yes: drink half your body weight in ounces. 150 lbs → 75 fl oz/day (~2.2 L). Add more for exercise, hot climates.
Can I drink too much water?
Rare but possible (hyponatremia). Normal intake is safe. Listen to thirst, increase intake during exercise/heat.
계산할 준비가 되셨나요? 무료 Water Intake 계산기를 사용해 보세요
직접 시도해 보세요 →