で水分摂取量を簡単に記録 - 無料＆安全
The "8 glasses a day" rule is a myth! Your actual hydration needs depend on your body weight, how much you sweat, and the environment. Use this calculator to find your personalized daily water goal.
Why is Hydration Important?
Water makes up about 60% of your body weight. Every cell, tissue, and organ in your body needs water to function properly. Staying properly hydrated helps with:
- Physical Performance: Prevents fatigue and keeps your joints lubricated.
- Brain Function: Mild dehydration can impair energy levels, mood, and concentration.
- Weight Management: Drinking water can increase satiety and boost your metabolic rate slightly.
How We Calculate Your Needs
This calculator uses a well-established baseline formula:
- Base Need: Approximately 0.5 to 1 ounce of water for every pound you weigh.
- Exercise: Add 12 ounces for every 30 minutes of physical activity.
- Environment: Hot or very dry/cold climates increase fluid loss through sweat and respiration, requiring additional intake.
- Pregnancy/Nursing: Women who are pregnant or breastfeeding need significantly more fluids to stay hydrated.
Disclaimer: This tool provides general guidance. If you have medical conditions like heart failure or kidney disease, you may need to restrict your fluid intake. Always consult your doctor.