20 Best 5 Gallon Water Jug For Fridge [2024]

Are you looking for the best 5 gallon water jug for fridge? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 5 gallon water jug for fridge.

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1 TDRFORCE 5 Gal Bottled Water Dispenser Pump Dispensing System 5 Gallon Water Jug Dispenser Pump... TDRFORCE 5 Gal Bottled Water Dispenser Pump Dispensing System 5 Gallon Water Jug Dispenser Pump...
2 Arrow Oasis Drink Dispenser for Fridge, 2.5 Gallon - Plastic Beverage Dispenser with Spigot for Easy... Arrow Oasis Drink Dispenser for Fridge, 2.5 Gallon - Plastic Beverage Dispenser with Spigot for...
3 WaterStorageCube BPA-Free Collapsible Water Container with Spigot, Food-Grade Camping Water Storage... WaterStorageCube BPA-Free Collapsible Water Container with Spigot, Food-Grade Camping Water...
4 Brio Self Cleaning Bottom Loading Water Cooler Water Dispenser – Limited Edition - 3 Temperature... Brio Self Cleaning Bottom Loading Water Cooler Water Dispenser – Limited Edition - 3...
5 Avalon Bottom Loading Water Cooler Dispenser with BioGuard- 3 Temperature Settings- UL/Energy Star... Avalon Bottom Loading Water Cooler Dispenser with BioGuard- 3 Temperature Settings- UL/Energy...
6 Brio Limited Edition Top Loading Water Cooler Dispenser - Hot & Cold Water, Child Safety Lock, Holds... Brio Limited Edition Top Loading Water Cooler Dispenser - Hot & Cold Water, Child Safety Lock,...
7 110V Drinking Water Pump for 5 Gallon Bottle Dispenser Pump System for Refrigerator Ice Maker Coffee... 110V Drinking Water Pump for 5 Gallon Bottle Dispenser Pump System for Refrigerator Ice Maker...
8 Smart Water Bottle Dispenser, Wate Pump 5 gallon Water Dispenser Automatic Drinking Water Pump USB... Smart Water Bottle Dispenser, Wate Pump 5 gallon Water Dispenser Automatic Drinking Water Pump...
9 Antarctic Star 2-in-1 Water Cooler Dispenser with Built-in Ice Maker, Hot and Cold Top Loading 3 to... Antarctic Star 2-in-1 Water Cooler Dispenser with Built-in Ice Maker, Hot and Cold Top Loading 3...
10 Bottle Water Dispenser Pump System, 20ft 110V AC US Plug Water Dispensing Pump with Single Inlet... Bottle Water Dispenser Pump System, 20ft 110V AC US Plug Water Dispensing Pump with Single Inlet...
11 SOUKOO 2 in 1 Water Ice Maker, 48lbs Daily Ice Cube Makers,Stainless Steel Ice Makers... SOUKOO 2 in 1 Water Ice Maker, 48lbs Daily Ice Cube Makers,Stainless Steel Ice Makers...
12 Safeplus Top Loading Water Cooler Dispenser , Hot & Cold Freestanding Water Cooler , Holds 3 or 5... Safeplus Top Loading Water Cooler Dispenser , Hot & Cold Freestanding Water Cooler , Holds 3 or 5...
13 Brio Self Cleaning Bottom Loading Water Cooler Water Dispenser – Black Stainless Steel - 3... Brio Self Cleaning Bottom Loading Water Cooler Water Dispenser – Black Stainless Steel - 3...
14 Primo Bottom-Loading Self-Sanitizing Water Dispenser, 3 Temp (Hot-Cool-Cold) Water Cooler Water... Primo Bottom-Loading Self-Sanitizing Water Dispenser, 3 Temp (Hot-Cool-Cold) Water Cooler Water...
15 Portable Water Bottle Pump 5 Gallon Water Bottle Dispenser USB Charging Automatic Drinking Water... Portable Water Bottle Pump 5 Gallon Water Bottle Dispenser USB Charging Automatic Drinking Water...
16 hOmeLabs Bottom Loading Water Dispenser for 3 or 5 Gallon Bottle - with Hot Cold and Room... hOmeLabs Bottom Loading Water Dispenser for 3 or 5 Gallon Bottle - with Hot Cold and Room...
17 Arrow Slimline Drink Dispenser for Fridge, 2.5 Gallons Arrow Slimline Drink Dispenser for Fridge, 2.5 Gallons
18 Farberware FW29919 Freestanding Hot and Cool Water Cooler Dispenser, Black Farberware FW29919 Freestanding Hot and Cool Water Cooler Dispenser, Black
19 Antarctic Star 2-in-1 Water Cooler Dispenser with Built-in Ice Maker, Freestanding Hot Cold Top... Antarctic Star 2-in-1 Water Cooler Dispenser with Built-in Ice Maker, Freestanding Hot Cold Top...
20 REDCAMP 4 Gallon Portable Water Container with Spigot, Water Storage Camp Water Jug for Camping... REDCAMP 4 Gallon Portable Water Container with Spigot, Water Storage Camp Water Jug for Camping...
Bestseller No. 1
TDRFORCE 5 Gal Bottled Water Dispenser Pump Dispensing System 5 Gallon Water Jug Dispenser Pump...
  • 【Drinking water pump system】TDRFORCE 5 gal bottled water dispenser pump is applicable to 5 gallon water jug, working as ideal fresh water...
  • 【Powerful function】TDRFORCE 5 gallon automatic bottled water dispenser pump provides 2.8bar (40 PSI) strong suction and 2 GPM high flow. Dry...
  • 【Easy Installation】Assembled with 66in inlet pipe (1.8ft hard pipe in 5gal jug & 3.6ft hose connected to the pump) & 20ft outlet hose, the...
  • 【Choose TDRFORCE for Warranty】As a professional manufacturer in home water pump field, TDRFORCE offers presale and after sale services and 180...
  • NOTICE:①Please fill water in the pump manually after long time unuse to restart the pump. Please check when the pump not working.②If you've...
SaleBestseller No. 2
Arrow Oasis Drink Dispenser for Fridge, 2.5 Gallon - Plastic Beverage Dispenser with Spigot for Easy...
  • 2.5 Gallon Fridge Drink Dispenser - Enjoy refreshing water or your favorite beverage from our Oasis 2.5 Gallon Drink Dispenser with Spigot. The clear...
  • Must-Have Features - Our food-safe BPA free plastic beverage dispenser is MADE IN THE USA, reusable, stain-resistant, durable and break resistant....
  • Enjoy Your Favorite Beverage, Anywhere - Not just for home use! Features convenient carry handle and large opening for ease of adding liquid and ice....
  • Refrigerator Friendly - The space-saving curved design of the dispenser container means it fits in your refrigerator for easy dispensing from the...
  • Pro Tip - Also works as a liquid laundry detergent dispenser. Available in a variety of sizes. Clear plastic with white spigot.
SaleBestseller No. 3
WaterStorageCube BPA-Free Collapsible Water Container with Spigot, Food-Grade Camping Water Storage...
  • FOOD-GRADE ODORLESS GREAT TASTE: PE plastic made with highest quality USA raw material. Environmentally friendly non-toxic, No BPA PVC or DEHP, No...
  • LIGHT, COMPACT, PORTABLE AND REUSABLE Foldable space saving design store away easily. Remains soft and flexible even when cold yet retains shape and...
  • WORRY-FREE AND LEAK-PROOF Custom made lid and spigot with gasketless design means no leaks or parts to replace. Good spigot water-flow. Thicker lid to...
  • EMERGENCY PREPAREDNESS AND DAILY USE Enables you quickly and safely store all the water your family needs in the event of an emergency or natural...
  • SATISFACTION GUARANTEE AND EBOOK INCLUDED If for any reason within 30 days you're not satisfied, simply return for a refund or replacement. THANK-YOU...
Bestseller No. 4
Brio Self Cleaning Bottom Loading Water Cooler Water Dispenser – Limited Edition - 3 Temperature...
  • CONVENIENT BOTTOM LOAD: Stop struggling to pick up heavy water bottles and simplify your life with the easy bottom load water cooler. Save your back...
  • SELF-CLEANING: Maintain the cleanliness of the cooler with the Ozone Self-Cleaning feature. Enjoy the ease of maintaining a clean cooler with minimal...
  • HOT, COLD & ROOM TEMPERATURE: When you use our water cooler dispenser you can choose between crisp cold, room-temperature and piping hot output,...
  • NIGHTLIGHT: Nightlight feature gives visibility in the dimmest settings. Never struggle to see what is being poured or accidentally dispense from the...
  • CHILD-SAFETY LOCK: Never worry about accidental pouring of hot water again with the two-step dispensing on the hot-water spout. Simply release the...
Bestseller No. 5
Avalon Bottom Loading Water Cooler Dispenser with BioGuard- 3 Temperature Settings- UL/Energy Star...
  • Three temperatures: three temperature settings allow you to customize your drinking experience. This dispenser features a crisp Cold, cool, or piping...
  • Innovative design: our sleek stylish stainless steel cabinet will make this water cooler fit right into your home kitchen or office.
  • Light the way: Our Built-In nightlight makes the water spouts clearly visible at night & has an empty-bottle indicator that lights up when the bottle...
  • Bottom loading: our water cooler is bottom loading to eliminate the strain of lifting, reduce spills and is suitable for 3-5 gallon water bottles...
  • Child safe: this product is UL/Energy Star approved and features a child safety lock on the hot water spout so the entire family can use it worry free
SaleBestseller No. 6
Brio Limited Edition Top Loading Water Cooler Dispenser - Hot & Cold Water, Child Safety Lock, Holds...
  • INCLUDED COMPONENTS: Top Loading Bottle Water Cooler Dispenser, Manual, Care Guide
Bestseller No. 7
110V Drinking Water Pump for 5 Gallon Bottle Dispenser Pump System for Refrigerator Ice Maker Coffee...
  • BOTTLED WATER DISPENSING PUMP SYSTEM (no jugs included): dual adjustable suction wands, 20FT discharge hose of food-grade material, BPA free,...
  • SMART ON-DEMAND WATER DISPENSER: to activate or shut-off the engine via a float sensor switch and deliver water under pressure 40 PSI automatically on...
  • QUICK FLOW WITH DUAL INLET: 1 gallon/min, less water bottle changes, fit for residential or commercial appliances
  • LESS NOISE: recommended to fix the pump body inside a closet or on wall with provided silicone screws to minimize the vibration and keep the running...
  • QUALIFIED AND RELIABLE: 100% new dispenser pump tested before delivery (normal with water residuals inside), with 1 Year warranty guarantee and...
Bestseller No. 8
Smart Water Bottle Dispenser, Wate Pump 5 gallon Water Dispenser Automatic Drinking Water Pump USB...
  • 【Safety & Health】BPA free drinking water dispenser, food grade silicone hose, 304 stainless steel, high density ABS plastic, no toxic, and no...
  • 【USB Rechargeable Battery】Built in rechargeable battery. can used about 30-40 days or around 4-6 bottles of 5 gallon water once full charged. no...
  • 【High Compatibility】It is basically fits almost every water jug which. compatible with different capacity bottle: 4.5L, 5L, 7.5L, 10L, 11.3L, 15L,...
  • 【Easy to Use】Simply fasten the small pump on the bottle mouth. one switch operation, One press to switch on, press again to turn it off. totally...
  • 【Convenient to Carry】It is lightweight, portable, plug and play, its compact size makes it easy to carry around, great for home, office, picnics,...
Bestseller No. 9
Antarctic Star 2-in-1 Water Cooler Dispenser with Built-in Ice Maker, Hot and Cold Top Loading 3 to...
  • Elegant Sleek Design:Its size is 11.81"*10.83"*33.46".This water dispense will look classy any public space. black color and sleek design adapts to...
  • INSTANT WATER & ICE:Rapidly makes 5L steaming hot water (≥194℉/90℃) or 4L crisp and ice-cold water (≤46℉/8℃) per hour. Ice maker produces...
  • Ice Maker Function:The ice making cycle lasts 7 to 15 minutes ( depending on the ambient temperature ). If there is no enough water to make ice, the...
  • USABILITY & SAFE DESIGN:LED indicator lights and related soft-touch buttons on the control area. Simple operation enables care-free usage. 2-step...
  • Strong Compressor and Quiet Machine: Working power for cooling water and hot water. But the water dispenser works with almost no noise so that you...
SaleBestseller No. 10
Bottle Water Dispenser Pump System, 20ft 110V AC US Plug Water Dispensing Pump with Single Inlet...
  • BOTTLE WATER PUMP SYSTEM: This 110v water dispenser pump works with a commercial 5 gallon jug of water. It can deliver water under pressure to an...
  • SAFETY TO USE: When the bottle is empty, the pump system will shut off. With Illuminated on/off switch, provides clear visibility in dark or...
  • LESS NOISE: The pump equipped with noise dampening rubber feet to minimize noise pollution, recommend using 4 screws and securing it to a wall to make...
  • EASY TO INSTALL: The bottled water system comes with easy to read instructions that will make the install a breeze.
  • CUSTOMER SERVICE: We stand behind our products and want to ensure that you love them just as much as we do. We promise that the pump was not used...
Bestseller No. 11
SOUKOO 2 in 1 Water Ice Maker, 48lbs Daily Ice Cube Makers,Stainless Steel Ice Makers...
  • 【Water Dispenser Ice Maker 2-in-1】Our countertop ice maker can make 48lbs ice cubes daily, making ice as fast as 6-10 minutes. Three different...
  • 【Continuous supply】 Using 2,3& 5 gallon water jugs loading from the top to have continues cold water supply. Melted ice can be recycled and reused...
  • 【Easy operation】Our machine features an easy operate panel with soft buttons: indicators with light give you clear instruct to operate this...
  • 【Quite but powerful】Qualified compressor provides ultra quite mode during ice making period, ideal for your living room, bedroom, office, etc....
  • 【Good Quality and Service】Soukoo has more than 10 years of ice machine development experience, with advanced ice making technology, excellent...
Bestseller No. 12
Safeplus Top Loading Water Cooler Dispenser , Hot & Cold Freestanding Water Cooler , Holds 3 or 5...
  • Material: ABS+ plastic
  • Dimensions: 12" x 11" x 31.5" (L x W x H)
  • Easy to set up
  • It holds 3 or 5 gallon bottles.
  • Perfect for home, office, and public places like a library and restaurant, etc.
Bestseller No. 13
Brio Self Cleaning Bottom Loading Water Cooler Water Dispenser – Black Stainless Steel - 3...
  • CONVENIENT BOTTOM LOAD: Stop struggling to pick up heavy water bottles and simplify your life with the easy bottom load water cooler. Save your back...
  • SELF-CLEANING: Maintain the cleanliness of the cooler with the Ozone Self-Cleaning feature. Enjoy the ease of maintaining a clean cooler with minimal...
  • HOT, COLD & ROOM TEMPERATURE: When you use our water cooler dispenser you can choose between crisp cold, room-temperature and piping hot output,...
  • NIGHTLIGHT: Nightlight feature gives visibility in the dimmest settings. Never struggle to see what is being poured or accidentally dispense from the...
  • CHILD-SAFETY LOCK: Never worry about accidental pouring of hot water again with the two-step dispensing on the hot-water spout. Simply release the...
Bestseller No. 14
Primo Bottom-Loading Self-Sanitizing Water Dispenser, 3 Temp (Hot-Cool-Cold) Water Cooler Water...
  • COUPONS for Primo water included: $5 OFF a bottle of pre-filled exchange water + a FREE self-service water refill. Redeemable at thousands of retail...
  • EASY WORK: Bottom loading eliminates lifting, flipping, and spilling. Bottles are concealed within the cabinet below.
  • SELF-SANITIZING feature uses harmless ozone to sanitize water reservoirs and lines.
  • 3 WATER TEMPERATURES: On-demand ICE-COLD, COOL, and PIPING-HOT water so you can prepare your favorite beverages and instant meals in seconds.
  • BRRR / AHHH: Cools water to 39.2 degrees; heats to at least 188.5 degrees.
Bestseller No. 15
Portable Water Bottle Pump 5 Gallon Water Bottle Dispenser USB Charging Automatic Drinking Water...
  • 【Safety & Health】BPA free drinking water dispenser, food grade silicone hose, 304 stainless steel, high density ABS plastic, no toxic, and no...
  • 【USB Rechargeable Battery】Built in rechargeable battery. can used about 30-40 days or around 4-6 bottles of 5 gallon water once full charged. no...
  • 【High Compatibility】It is basically fits almost every water jug which. compatible with different capacity bottle: 4.5L, 5L, 7.5L, 10L, 11.3L, 15L,...
  • 【Easy to Use】Simply fasten the small pump on the bottle mouth. one switch operation, One press to switch on, press again to turn it off. totally...
  • 【Convenient to Carry】It is lightweight, portable, plug and play, its compact size makes it easy to carry around, great for home, office, picnics,...
Bestseller No. 16
hOmeLabs Bottom Loading Water Dispenser for 3 or 5 Gallon Bottle - with Hot Cold and Room...
  • EASY BOTTOM LOADING DESIGN - Now it’s easy to keep yourself hydrated with our bottom load water dispenser. Gone are the days of “flip and drip”...
  • FOR 3 TO 5 GALLON JUGS & FITS ANY SPACE - Stylish water cooler dispenser with stainless steel door adds a modern touch to every water cooler...
  • INTUITIVE CONTROL PANEL WITH NIGHT LIGHT- Features an LED night light that helps you get water during the night without opening any room light. This...
  • CHILD SAFETY LOCK FEATURE - Kids in the house? Clumsy adults? The child safety lock feature located on the unit prevents accidentally pressing the hot...
  • 2-YEAR WARRANTY & MONEY BACK GUARANTEE - 100% satisfaction money-back guarantee. If you are not happy with your hOmeLabs water dispenser, contact us...
Bestseller No. 17
Arrow Slimline Drink Dispenser for Fridge, 2.5 Gallons
  • 2.5 Gallon Water Dispenser
  • Made in the USS
  • Features convenient carry handle
  • Refill and reuse over and over
  • Available in a variety of sizes. Plastic with white spigot
Bestseller No. 18
Farberware FW29919 Freestanding Hot and Cool Water Cooler Dispenser, Black
  • Hot and Cool water dispenser holds a 3 or 5 gallon water tank (not included) and provides cool water and hot water instantly
  • Energy saving thermo-electric cooling and high heat efficiency engineering; low noise
  • Bottom storage cabinet; Dimensions: 31 inches x 11 inches x 11 inches (w/o bottle)
  • The dispenser uses 550 watts of heating power to provide hot water with temperatures of 194F (90C) 5L/h, Uses 75 watts of cooling power to provide...
  • Compatible with water filtration systems designed for top-loading dispensers
Bestseller No. 19
Antarctic Star 2-in-1 Water Cooler Dispenser with Built-in Ice Maker, Freestanding Hot Cold Top...
  • 【Elegant Sleek Design】This water dispense will look classy any public space. black color and sleek design adapts to every scene.Designed to be...
  • 【INSTANT WATER & ICE】Rapidly makes 5L steaming hot water (≥194℉/90℃) or 4L crisp and ice-cold water (≤46℉/8℃) per hour. Ice maker...
  • 【Ice Maker Function】The ice making cycle lasts 7 to 15 minutes ( depending on the ambient temperature ). If there is no enough water to make ice,...
  • 【USABILITY & SAFE DESIGN】LED indicator lights and related soft-touch buttons on the control area. Simple operation enables care-free usage. 2-step...
  • Strong Compressor and Quiet Machine: TwoWorking power for cooling water and hot water. But the water dispenser works with almost no noise so that you...
Bestseller No. 20
REDCAMP 4 Gallon Portable Water Container with Spigot, Water Storage Camp Water Jug for Camping...
  • ▶Safe Material: Food-Grade great taste environmentally friendly high-grade HDPE plastic, more transparent and softer. No BPA PVC and water taste...
  • ▶Worry-Free and Leakproof Spigot: Patented unique faucet design with different Silicon sealing rings and outlet position, easy to prevent leaking...
  • ▶Easy to Clean the Jug: Dimension: 13.8x7.5x11.4in (35x19x29cm). The water container has two barrels. One is large enough to put your hand inside...
  • ▶Outdoor and Emergency Use: The portable water container is perfect for outdoor activities, like camping, picnic, hiking, travel also for home...
  • ▶GANURANTEEDG: REDCAMP offers a 365-day limited manufacturer warranty. If you're not satisfied for any reason, please contact us immediately and we...

Having trouble finding a great 5 gallon water jug for fridge?

This problem is well understood by us because we have gone through the entire 5 gallon water jug for fridge research process ourselves, which is why we have put together a comprehensive list of the best 5 gallon water jug for fridges available in the market today.

After hours of searching and using all the models on the market, we have found the best 5 gallon water jug for fridge for 2023. See our ranking below!

How Do You Buy The Best 5 Gallon Water Jug For Fridge?

Do you get stressed out thinking about shopping for a great 5 gallon water jug for fridge? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 5 gallon water jug for fridge, which is why we have assembled a comprehensive list of the greatest 5 gallon water jug for fridge available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 5 gallon water jug for fridge that you consider buying. Your questions might include the following:

  • Is it worth buying an 5 gallon water jug for fridge?
  • What benefits are there with buying an 5 gallon water jug for fridge?
  • What factors deserve consideration when shopping for an effective 5 gallon water jug for fridge?
  • Why is it crucial to invest in any 5 gallon water jug for fridge, much less the best one?
  • Which 5 gallon water jug for fridge are good in the current market?
  • Where can you find information like this about 5 gallon water jug for fridge?

We’re convinced that you likely have far more questions than just these regarding 5 gallon water jug for fridge, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 5 gallon water jug for fridge, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 5 gallon water jug for fridge. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 5 gallon water jug for fridge buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 5 gallon water jug for fridge currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 5 gallon water jug for fridge has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 5 gallon water jug for fridge?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 5 gallon water jug for fridge.
  5. Customer Ratings: Number ratings grade 5 gallon water jug for fridge objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 5 gallon water jug for fridge.
  7. Product Quality: You don’t always get what you pay for with an 5 gallon water jug for fridge, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 5 gallon water jug for fridge is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 5 gallon water jug for fridge information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 5 gallon water jug for fridge is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: How many pennies to fill a 5 gallon water jug?

A: The volume of a US penny is 360 cubic millimeters while the volume of a 5 gallon container is 18927058 cubic millimeters. Divide the second number by the first and you get a total of roughly 52,000 pennies into a five gallon jar, assuming everything is stacked perfectly with no loss of volume.

Q: How much change to fill a 5 gallon water jug?

A: In theory, a 5-gallon jug filled completely with $100 bills can contain a total of $980,000. If the jug is filled with $1 coins, it could hold a total of $33,333. The amount varies widely depending on the combination of coins and bills used to fill the jug.

Q: How many dimes can fit in a 5 gallon jug?

A: How many dimes can a 5 gallon water jug hold? 170 dimes can fit. or 91 quarters can fit. How much is one gallon of coins? Randall Munroe says that it’s about $468 if you don’t use the quarters for other things, but it looks like you do, so he says it’ll be about $336 a gallon. If there were no pennies in there, it’d be about $611.

Q: How many gallons will a 5 gallon jug hold?

A: 5. Divide the tank’s volume in cubic inches by 231 to convert to gallons. Press the “÷” button, then enter “231” and hit “=” a second time. Dividing by 231, which is the number of cubic inches in a gallon, will tell you exactly how many gallons your tank will hold when filled to capacity. It’s that easy!