search button

Gallons to Fluid Ounces Conversion

US galllons to fluid ounces table

gallon 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 500 1000
fluid ounce 128 256 384 512 640 768 896 1024 1152 1280 1408 1536 1664 1792 1920 2048 2176 2304 2432 2560 2688 2816 2944 3072 3200 3328 3456 3584 3712 3840 3968 4096 4224 4352 4480 4608 4736 4864 4992 5120 5248 5376 5504 5632 5760 5888 6016 6144 6272 6400 6528 6656 6784 6912 7040 7168 7296 7424 7552 7680 7808 7936 8064 8192 8320 8448 8576 8704 8832 8960 9088 9216 9344 9472 9600 9728 9856 9984 10112 10240 10368 10496 10624 10752 10880 11008 11136 11264 11392 11520 11648 11776 11904 12032 12160 12288 12416 12544 12672 12800 64000 128000
←→
step
Round:
Enter Gallon
Enter Fluid Ounce

How to convert gallons to fluid ounces?

1 US fluid gallon is equal to 128 US fluid ounces (oz). To convert gallons to fluid ounces, multiply the gallon value by 128.

For example, to calculate how many fluid ounces is 2 gallons of water, multiply 2 by 128, that makes 256 fl oz is 2 gallons of water.

US gallons to fluid ounces formula

fluid ounce = gallon * 128

To convert between imperial gallons and fluid ounces, please visit imperial gallons to fluid ounces converter.

How many water bottles are there in a gallon?

1 US gallon is equal to 128 US fluid ounces. To calculate how many water bottles sized in oz can fit in gallons, multiply the number of gallons by 128 and divide by the size of the water bottle in US fluid oz.

For example, to calculate how many 16.9 oz water bottles can fit in 3 gallons, multiply 3 by 128 and divide by 16.9, that makes 22.72 water bottles of 16.9 oz can fit in 3 gallons.

Different sizes of water bottles in a gallon:

  • there are 16 water bottles of 8 oz in a US gallon
  • there are 10.6 water bottles of 12 oz in a US gallon
  • there are 7.57 water bottles of 16.9 oz in a US gallon
  • there are 6.4 water bottles of 20 oz in a US gallon
  • there are 5.3 water bottles of 24 oz in a US gallon
  • there are 3.78 water bottles of 33.8 oz in a US gallon

To calculate how many water bottles of different sizes can fit in gallons and view the gallons to water bottles table, please visit how many water bottles are in gallons.

What is a Gallon?

Gallon is an imperial and United States Customary systems volume unit. 1 US gallon = 128 US fluid ounces and 1 Imperial gallon = 160 Imperial fluid ounces. The symbol is "gal".

  • 1 US fluid gallon = 128 US fluid ounces
  • 1 Imperial gallon = 160 Imperial fluid ounces

Common conversions from US gallons to ounces (fl oz)

  • 1/8 gal = 16 fl oz
  • 1/4 gal = 32 fl oz
  • 1/3 gal = 42.66 fl oz
  • 1/2 gal = 64 fl oz
  • 1 gal = 128 fl oz
  • 1.5 gal = 192 fl oz
  • 2 gal = 256 fl oz
  • 2.5 gal = 320 fl oz

Please visit volume units conversion to convert all volume units.

Create Conversion Table
Click "Create Table". Enter a "Start" value (5, 100 etc). Select an "Increment" value (0.01, 5 etc) and select "Accuracy" to round the result.