Water intake at 290 lb
This calculator turns weight and exercise into a daily water target. The sample person weighs 290 lb with 30 minutes of exercise.
How it works
The estimate starts at 35 milliliters per kilogram of body weight. Each 30 minutes of exercise adds 350 milliliters. The page shows the total in milliliters, liters and ounces. At 290 lb, 30 minutes of exercise adds 350 ml.
Worked example
Convert first: 290 lb is 131.54 kg. Then 131.54 × 35 = 4603.9 ml. Exercise adds 350 × 30 divided by 30 = 350 ml. 4603.9 + 350 = 4953.9 ml. That is 4.95 liters, 167.5 ounces or 20.9 cups.
Common questions
Can I drink too much water?
Yes, though it is uncommon. Drinking far more than you need in a short time can dilute the salts in your blood. Spread your intake through the day. At 290 lb with 30 minutes of exercise, spread over 16 waking hours, 4.95 liters is about 310 ml an hour.
How many ounces or cups is that?
A US fluid ounce is 29.5735 milliliters and a cup is 8 ounces. At 290 lb with 30 minutes of exercise, 4953.9 ml is 167.5 ounces or 20.9 cups.
Do coffee and tea count toward my water?
Most drinks count toward your fluid total, though plain water is the simplest choice. At 290 lb with 30 minutes of exercise, 4.95 liters a day is about 21 cups spread across the day.
Does food count toward the total?
Food contains water. Treat the result as a goal for your total fluid across the day and not a quota for drinks alone. At 290 lb with 30 minutes of exercise, treat 4.95 liters as a goal for the day, not a quota for one sitting.
What if I exercise more or less than this?
Change the exercise minutes. Each 30 minutes adds 350 milliliters. At 30 minutes the page adds 350 ml. An extra 30 minutes would bring the total to 5303.9 ml.