Water intake by body weight
The chart below gives the daily water target for each body weight, using the water intake calculator's rule of thumb: 33 ml per kilogram of body weight, plus 350 ml for every 30 minutes of exercise, plus 10% in a hot climate. Choose your weight to see its table by exercise and climate.
It is a planning estimate and there is no single official requirement. The total counts water from food and other drinks. For your own weight in kilograms, your minutes of exercise and your climate, use the water intake calculator.
Daily water by body weight
| Body weight | No exercise, litres | No exercise, oz | 1 hour, litres | 1 hour, hot, litres |
|---|---|---|---|---|
| 110 lb (50 kg) | 1.7 | 56 | 2.4 | 2.6 |
| 120 lb (54 kg) | 1.8 | 61 | 2.5 | 2.8 |
| 130 lb (59 kg) | 2.0 | 66 | 2.7 | 2.9 |
| 140 lb (64 kg) | 2.1 | 71 | 2.8 | 3.1 |
| 150 lb (68 kg) | 2.3 | 76 | 3.0 | 3.2 |
| 160 lb (73 kg) | 2.4 | 81 | 3.1 | 3.4 |
| 170 lb (77 kg) | 2.5 | 86 | 3.2 | 3.6 |
| 180 lb (82 kg) | 2.7 | 91 | 3.4 | 3.7 |
| 190 lb (86 kg) | 2.8 | 96 | 3.5 | 3.9 |
| 200 lb (91 kg) | 3.0 | 101 | 3.7 | 4.1 |
| 210 lb (95 kg) | 3.1 | 106 | 3.8 | 4.2 |
| 220 lb (100 kg) | 3.3 | 111 | 4.0 | 4.4 |
| 230 lb (104 kg) | 3.4 | 116 | 4.1 | 4.6 |
| 240 lb (109 kg) | 3.6 | 121 | 4.3 | 4.7 |
| 250 lb (113 kg) | 3.7 | 126 | 4.4 | 4.9 |
Track it instead of guessing
CalorTracker has a one-tap water log with a goal you set. Free to start.
Start free on the webAn estimate from a rule of thumb, not medical advice. Ask your doctor if a medical condition or medicine affects how much you should drink.