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Ounces to Gallons Conversion Calculator

Enter the weight in ounces below to calculate the volume in gallons.

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1 oz = 0.007489151707 gal
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How to Convert Ounces to Gallons

Scales are used to measure weight
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To convert an ounce measurement to a gallon measurement, divide the weight by 133.526471 times the density of the ingredient or material.

You can use this simple formula to convert:

gallons = ounces133.526471 × ingredient density

Thus, the weight in gallons is equal to the ounces divided by 133.526471 times the density of the ingredient or material.

For example, here's how to convert 500 ounces to gallons for an ingredient with a density of 0.7 g/mL.
500 oz = 500133.526471 × 0.7 = 5.349394 gal

This calculator converts ounces in weight, if you're trying to convert a volume measurement in fluid ounces try our fluid ounces to gallons calculator.

Ounces and gallons are both commonly used to measure cooking ingredients.

For cooking applications, most chefs suggest measuring dry ingredients by weight rather than volume to improve accuracy in the measurements.[1] The density of dry ingredients can vary for a variety of reasons, such as compaction.

The best way to ensure an accurate conversion is to use a scale. When a scale is not available, a calculator like the one above is a good way to estimate the weight to volume conversion.

Keep reading to learn more about each unit of measure.

Ounces

One ounce is a unit of mass/weight equal to 1/16 of a pound. The common ounce should not be confused with the troy ounce, which is equal to 1/12 of a troy pound.[2]

The ounce is a US customary and imperial unit of weight. Ounces can be abbreviated as oz; for example, 1 ounce can be written as 1 oz.

Gallons

The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.[3] The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.

The gallon is a US customary unit of volume. Gallons can be abbreviated as gal; for example, 1 gallon can be written as 1 gal.

Ounce to Gallon Conversion Table

Ounce measurements converted to gallons for commonly used ingredients.
Weight in Ounces: Volume in Gallons of:
Water Milk Cooking Oil All Purpose Flour Granulated Sugar
1 oz 0.007489 gal 0.007201 gal 0.00851 gal 0.014157 gal 0.010699 gal
2 oz 0.014978 gal 0.014402 gal 0.017021 gal 0.028314 gal 0.021398 gal
3 oz 0.022467 gal 0.021603 gal 0.025531 gal 0.042472 gal 0.032096 gal
4 oz 0.029957 gal 0.028804 gal 0.034042 gal 0.056629 gal 0.042795 gal
5 oz 0.037446 gal 0.036006 gal 0.042552 gal 0.070786 gal 0.053494 gal
6 oz 0.044935 gal 0.043207 gal 0.051062 gal 0.084943 gal 0.064193 gal
7 oz 0.052424 gal 0.050408 gal 0.059573 gal 0.0991 gal 0.074892 gal
8 oz 0.059913 gal 0.057609 gal 0.068083 gal 0.113257 gal 0.08559 gal
9 oz 0.067402 gal 0.06481 gal 0.076594 gal 0.127415 gal 0.096289 gal
10 oz 0.074892 gal 0.072011 gal 0.085104 gal 0.141572 gal 0.106988 gal
11 oz 0.082381 gal 0.079212 gal 0.093614 gal 0.155729 gal 0.117687 gal
12 oz 0.08987 gal 0.086413 gal 0.102125 gal 0.169886 gal 0.128385 gal
13 oz 0.097359 gal 0.093614 gal 0.110635 gal 0.184043 gal 0.139084 gal
14 oz 0.104848 gal 0.100816 gal 0.119146 gal 0.198201 gal 0.149783 gal
15 oz 0.112337 gal 0.108017 gal 0.127656 gal 0.212358 gal 0.160482 gal
16 oz 0.119826 gal 0.115218 gal 0.136166 gal 0.226515 gal 0.171181 gal
17 oz 0.127316 gal 0.122419 gal 0.144677 gal 0.240672 gal 0.181879 gal
18 oz 0.134805 gal 0.12962 gal 0.153187 gal 0.254829 gal 0.192578 gal
19 oz 0.142294 gal 0.136821 gal 0.161698 gal 0.268987 gal 0.203277 gal
20 oz 0.149783 gal 0.144022 gal 0.170208 gal 0.283144 gal 0.213976 gal
21 oz 0.157272 gal 0.151223 gal 0.178718 gal 0.297301 gal 0.224675 gal
22 oz 0.164761 gal 0.158424 gal 0.187229 gal 0.311458 gal 0.235373 gal
23 oz 0.17225 gal 0.165625 gal 0.195739 gal 0.325615 gal 0.246072 gal
24 oz 0.17974 gal 0.172827 gal 0.20425 gal 0.339772 gal 0.256771 gal
25 oz 0.187229 gal 0.180028 gal 0.21276 gal 0.35393 gal 0.26747 gal
26 oz 0.194718 gal 0.187229 gal 0.22127 gal 0.368087 gal 0.278168 gal
27 oz 0.202207 gal 0.19443 gal 0.229781 gal 0.382244 gal 0.288867 gal
28 oz 0.209696 gal 0.201631 gal 0.238291 gal 0.396401 gal 0.299566 gal
29 oz 0.217185 gal 0.208832 gal 0.246802 gal 0.410558 gal 0.310265 gal
30 oz 0.224675 gal 0.216033 gal 0.255312 gal 0.424716 gal 0.320964 gal
31 oz 0.232164 gal 0.223234 gal 0.263822 gal 0.438873 gal 0.331662 gal
32 oz 0.239653 gal 0.230435 gal 0.272333 gal 0.45303 gal 0.342361 gal
33 oz 0.247142 gal 0.237637 gal 0.280843 gal 0.467187 gal 0.35306 gal
34 oz 0.254631 gal 0.244838 gal 0.289354 gal 0.481344 gal 0.363759 gal
35 oz 0.26212 gal 0.252039 gal 0.297864 gal 0.495502 gal 0.374458 gal
36 oz 0.269609 gal 0.25924 gal 0.306374 gal 0.509659 gal 0.385156 gal
37 oz 0.277099 gal 0.266441 gal 0.314885 gal 0.523816 gal 0.395855 gal
38 oz 0.284588 gal 0.273642 gal 0.323395 gal 0.537973 gal 0.406554 gal
39 oz 0.292077 gal 0.280843 gal 0.331906 gal 0.55213 gal 0.417253 gal
40 oz 0.299566 gal 0.288044 gal 0.340416 gal 0.566287 gal 0.427952 gal

References

  1. National Institute of Standards & Technology, Metric Cooking Resources, https://www.nist.gov/pml/weights-and-measures/metric-cooking-resources
  2. James Bucki, Troy Ounce vs. Ounce, The Spruce, https://www.thesprucecrafts.com/troy-ounce-vs-ounce-4588158
  3. National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf
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