How Much Water for 80 kg With 1 Hour of Exercise?
An 80 kg person exercising an hour a day has a noticeably higher daily hydration requirement.
How to use this tool
- Enter your body weight in kilograms.
- Enter your average daily exercise time in minutes.
- See your recommended daily water intake in litres and glasses.
Heavier bodies and longer workouts both increase daily fluid needs — see your combined target here.
Frequently asked questions
- How much water should I drink per day?
- A common rule of thumb is 35 mL per kilogram of body weight, plus extra for exercise. A 70 kg person doing 30 minutes of exercise should aim for about 2.8 litres per day.
- Does coffee count toward daily water intake?
- Caffeinated drinks have a mild diuretic effect but still contribute to hydration. Plain water is best; other fluids count partially.