How Many Oz in a Gallon? Learn the Easy Conversion Here!

Understanding how many oz in a gallon is crucial for various daily tasks, from cooking to hydration. In the U.S. customary system, one gallon equals 128 fluid ounces. This simple conversion helps you measure liquids accurately, whether you’re scaling a recipe or tracking your water intake. Knowing this can make managing large quantities of liquid more efficient.

Convert 128 Oz to Gallons 

Converting 128 oz to gallons is straightforward: 128 fluid ounces equal one U.S. gallon. This conversion is handy for meeting hydration goals or preparing large batches of recipes. For instance, health guidelines often recommend drinking a gallon of water a day, which is 128 ounces. Understanding this conversion helps you plan and manage your liquid intake or ingredient quantities effectively.

how many oz in a gallon

Also, we should note, we’ve limited it to the common brands you can find in a convenience store (or in one case at your local Starbucks) – because – that is likely most often where you’re going to be thirstin’ for some bottled H2O.

Top 10 Best Water Brands

#10. Arrowhead

No. Just, no. Even if you’re parched, dying of thirst, or walking in the desert, it’s likely that you might take a moment to debate a bottle of Arrowhead if that is what you’re offered.  The bottled water tastes like the questionable water you swam in as a kid.  If you need even more proof Arrowhead is literally the worst, watch About Nestle and their business (ok so they also produce a lot of other brands, but still).  

#9 & #8. Dasani/Aquafina 

These two are tied for mediocrity.  Often these two brands might be your only choices at a gas station, especially one located in the middle of nowhere on a road trip.  You sort of look at both and squint, not sure which garden-hose taste you want to experience today.  They are not the absolute worst, but they are very close to it.  Find these half-drunk bottles at your local 5K race.

#7. Ice Mountain

Say what you want, Ice Mountain is better than any other “standard” bottle of water out there. If you’re searching for the best bottled water to drink, Ice Mountain has a crisper taste, how many oz are in a gallon seems colder, and you drink it faster.  It also has midwestern roots so you can feel good about drinking it.  Although like a good Midwesterner, this bottle is also known for being passive-aggressive.  While it tastes excellent ice cold, let it sit at room temperature for too long and you’ll wonder if it’s actually a bottle of Dasani.

#6. Ethos

Now we move into the section called “fancier” bottles of water.  Or in this case, “fancier” bottles of tap water.  Ethos is not bad, but it’s not great.  However, when you walk into Starbucks on Saturday morning hungover from the night before, Ethos is there to greet you.  It looks extra refreshing to your tired eyes as you think – I am here for caffeine to function BUT this water looks tasty.  And instead of just asking for a free iced cup of water, you buy an Ethos.  It’s fine, you’re dehydrated and hungover so you won’t realize it’s just okay anyway.  

#5. Life WTR

They have pretty colored bottles which is why we placed them above Ethos.  Other than that, they probably are about the same.  They also don’t claim to be helping others, like Ethos does (but do they really?).  However, you do get to look at fun art while you drink it so it spices up your bottled water experience.  Taste-wise?  Maybe a slight improvement.  A little metallicity, sure, but we won’t complain too much…because we’re entranced by the fun design!

#4. Evian

Whenever I think of this brand of bottled water, I think of Superstar and this scene where Mary Katherine Gallagher (played by Molly Shannon) tells Evian to, quote, “Go drink a bottle of yourself.”  An epic fight scene, and mostly an epic bottle of water.  If you are looking for the best-tasting bottle of water, Evian is refreshing and you will feel fancier drinking it. Like, look at me, I can afford expensive water! Pinkies up.   

#3. SmartWater

Iconic, and one of the first to really “change the game” in the bottled water industry.  They’ve also created about 100 versions of SmartWater now: Smartwater+, Smartwater antioxidant, Smartwater cucumber lime, Smartwater alkaline 9+ph, who ever thought there could be so many versions of SmartWater!?  Does anyone even know what the pH balanced versus alkaline 9+pH means? No, but, it makes us feel like we’re becoming extra hydrated! SmartWater offers various options for the healthiest water to drink.

#2. Essentia

Say what you will, Essentia is one of the best.  Is it the “Best tasting water to ever walk the earth” as a quote on their website claims? No, that seems a little over the top.  But is it pretty great? Yes.  It comes in six different sizes too so you can choose your level of water intake.  

#1. Fiji 

No questions asked, Fiji is the best bottled water to drink or buy. Convenience stores and airports have Fiji waiting for you.  And what’s better than feeling exotic while you’re drinking H2O? Nothing, nothing is better.  It’s like an escape in a bottle.  Just close your eyes and imagine a tropical island while you drink it, the water pouring from a natural waterfall, and instantly you’ll know this is the best water you’ve ever tasted. 

 

Stay Hydrated with the Best Bottled Water

Choosing the right brand of water affects how many oz in a gallon. Staying hydrated is essential for optimal health, so selecting the best water brand will help you meet your daily needs. A water tracker app can be a handy tool for monitoring your intake. Also, it’s worth noting that we’ve limited our ranking to common brands found in most stores, as that’s likely where you’ll be looking for some bottled H20.

Photo by Jonathan Chng on Unsplash