Not drinking enough water can cause serious complications, as every cell in your body requires water to function properly. People who do not drink enough water during the day often feel thirst with hunger and end up eating more. Therefore, you should drink more water especially if you want to lose weight. Many experts believe that there are benefits of drinking a gallon of water daily, but you need to know how many ounces in a gallon of water to include that much in your routine. Let's find out more about it.

How Many Ounces in a Gallon of Water?

A gallon contains 128 ounces of water. It means that you will have to drink 16 8-ounce glasses to drink a gallon of water every day. But, you may be thinking how many ounces are there in a glass of water. Well, the answer depends on the size of your glass. It is an 8-ounce glass if it can hold 8 ounces of fluid, but you can also find 16-ounce and even 64-ounce glass containers. A measuring cup is 8 ounces, and 16 such cups would make a gallon. Here is more about it:

  • 2 cups = 16 ounces or 1 pint, whereas 8 pints = a gallon

  • 4 cups = 32 ounces or 1 quart, whereas 4 quarts = a gallon

  • 16 cups = 128 ounces or 1 gallon

  • 33.8140226 ounces = 1 liter

  • 1000ml = 1 liter

  • 3.7854118 liters = 1 gallon

How Much Water Do You Need? 8 Glasses a Day?

How Much Water Do You Need?

You constantly lose water through your breath, urine, perspiration, and bowel movements. If you do not replenish this water supply, your body will not function properly. You have to consume foods and beverages that contain water. Once you know how many ounces in a gallon of water, you may be thinking how much of water to drink every day to stay healthy. Studies show that men should be drinking at least 3 liters (13 cups) of fluid a day, whereas women should go for 2.2 liters (9 cups) of fluid every day.

What About the Advice to Drink 8 Glasses a Day?

When it comes to drinking water, you may have already heard that you should drink at least 8 glasses of water a day. It would translate to 1.9 liters a day, which may not be enough in certain situations. The "8 by 8" rule is certainly popular, but there is not enough scientific evidence to support it. Still, drinking eight 8-ounce glasses of fluid every day would still help keep things on track.

How to Ensure Drinking More Water per Day

How many ounces in a gallon of water? 128 ounces! You may be very surprised as it means that you should drink 16 8-ounce glasses daily, which is never going to be easy in the real world. You may want to try it though because there is evidence that people who drink more water have better digestion and manage to lose weight effectively. A professor at Virginia Tech University found that drinking a couple of glasses of water before your meals would help you eat 75 fewer calories. Even if that does not seem much, it will help you lose 10 pounds in a year. Just be sure to spread that gallon of water throughout the day – you will require many bathroom trips, but your body will eventually get used to it. Here is how you can drink more water daily:

Go for two glasses of water soon after you wake up. Ensure that you drink from an 8-ounce glass.

Have another glass of water while preparing breakfast or getting ready for work. Drink another one during breakfast to improve digestion. This will also ensure that you are going to start your day well hydrated.

Be sure to have three glasses of water in the period after breakfast and before lunch. You may have to drink additional water in case you exercise during this period. With lunch, you should have two glasses of water, especially when your lunch is laden with fiber and protein. You can also take a bottle of water with you to keep yourself hydrated throughout the day.

Aim for another three glass of water in the period after lunch and before dinner. It is fine to add fresh mint, lemon, or cucumber slices to make your drink more refreshing. Just stay away from adding any sugar or other additives, as they are going to add empty calories to your system.

Drink a glass of water when preparing dinner, and have another couple during and after diner. After these two glasses, you have finished almost a gallon of water by this time. Ensure that you do not drink water too close to bedtime or it will disrupt your sleep.

You can replace your late-night snack or dessert with a warm glass of water. You can make it even healthier by adding some grated ginger and lemon. Sometimes, you are just thirst and not hungry – people who have these feelings often end up overeating and putting on more weight. Drinking a glass of warm water will certainly keep you from late-night munching and help you stay healthier.


While it is important to drink water, you need to understand that drinking too much too quickly would lead to serious consequences. Drinking enormous amounts of water could lead to hyponatremia, which is characterized by extremely low levels of sodium in your body. Some common symptoms of hyponatremia are confusion, irritability, etc. It may lead to coma in severe cases.


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