“8×8 rule” of drinking water per day
Do you know about the 8: 8 rule? If you decide to do so, this rule is a rather straightforward generalization. In addition to any other beverages, the unofficial guideline that we consume eight eight-ounce (240 ml) glasses of water every day, for a total of little under two liters.

It doesn’t say how quickly they should be taken or if they should be divided up over the day or eaten in the morning or at night. Essentially, this rule states that nothing else matters as long as you consume the required amount of water during the day.
His rule, however, has little to no scientific support. The advantages of drinking eight glasses of water, each eight ounces in size, each day have not been studied. Individual water consumption varies and should be tailored to individual requirements. But even so, there are situations when this rule is useful.
Amount of water according to your weight
Here are the suggested daily water intake recommendations for a variety of weights so you can determine how much to consume each day. Keep an eye on your level of exercise as well.
Weight, pounds / kilogram | Water Daily, ounces / liter |
100 lb / 45,4 kg | 50 oz / 1,4 L |
110 lb / 49,9 kg | 55 oz / 1,6 L |
120 lb / 54,4 kg | 60 oz / 1,7 L |
130 lb / 59,0 kg | 65 oz / 1,8 L |
140 lb / 63,5 kg | 70 oz / 2,0 L |
150 lb / 68,0 kg | 75 oz / 2,1 L |
160 lb / 72,6 kg | 80 oz / 2,3 L |
170 lb / 77,1 kg | 85 oz / 2,4 L |
180 lb / 81,6 kg | 90 oz / 2,6 L |
190 lb / 86,2 kg | 95 oz / 2,7 L |
200 lb / 90,7 kg | 100 oz / 2,8 L |
210 lb / 95,3 kg | 105 oz / 3,0 L |
220 lb / 99,8 kg | 110 oz / 3,1 L |
230 lb / 104,3 kg | 115 oz / 3,3 L |
240 lb / 108,9 kg | 120 oz / 3,4 L |
250 lb / 113,4 kg | 125 oz / 3,5 L |
260 lb / 117,9 kg | 130 oz / 3,7 L |
270 lb / 122,5 kg | 135 oz / 3,8 L |
280 lb / 127,0 kg | 140 oz / 4,0 L |
WHEN YOU NEED MORE WATER

Compared to other persons your age and weight, you may require more water. You require different amounts of water depending on the following things:
- Where you live. In hot, humid, or dry climates, you will require extra water. If you reside in the mountains or at a high altitude, you will also require extra water.
- Your diet. You could lose more water through increased urine if you consume a lot of coffee and other caffeinated beverages. If you consume a lot of salty, hot, or sweet items in your diet, you should probably also drink extra water. If you don’t consume a lot of hydrating meals that are high in water, such as fresh or cooked fruits and vegetables, you may need to drink more water.
- The temperature or season. Due to sweat, you can require more water in warmer months than in colder ones.
- Your environment. You could become more thirsty more quickly if you spend more time outside in the heat or in a warm environment.
- How active you are. You’ll need more water than someone who sits at a desk if you’re active during the day, or if you walk around or stand up a lot. You will need to drink more to replace the water you lose if you exercise or engage in any strenuous activity.
- Your health. You should consume extra water if you are sick, have a fever, lose fluids through vomiting, or have diarrhea. You will also require extra water if you have a medical condition like diabetes. Diuretics are one kind of drug that might cause water loss in patients.
- Pregnant or breastfeeding. You must consume more water to keep hydrated if you are pregnant or breastfeeding. After all, your body is performing the tasks for two or more.