Grams to Fluid Ounces Conversion Calculator

Enter the weight in grams below to calculate the volume in fluid ounces.

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1 g = 0.033814022702 fl oz

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How to Convert Grams to Fluid Ounces

Since grams are a unit of mass and fluid ounces are a unit of volume, which are different physical quantities, we need to know one more physical quantity of the ingredient or substance to convert between them. In this case, we need to account for the density of the substance whenever we do a conversion.

Therefore, to convert between grams and fluid ounces of an ingredient or substance, we must either multiply or divide by its density, depending on which direction we are performing the conversion.

Grams to Fluid Ounces Formula

To convert a measurement in grams to fluid ounces, divide the weight by the density of the ingredient or material. Note that in order for this to work, the density must be in grams per fluid ounce (g/fl oz).

If the density is given in grams per milliliter (g/mL), then first multiply the density by 29.5735 to convert to g/fl oz.

For a density given in g/mL, you can use this simple formula to convert:

fluid ounces = grams / 29.5735 × density

Thus, the volume in fluid ounces is equal to the weight in grams divided by 29.5735 times the density (in g/mL) of the ingredient, substance, or material.

For example, here's how to convert 5 grams to fluid ounces for an ingredient with a density of 0.7 g/mL.
fluid ounces = 5 g / 29.5735 × 0.7 g/mL = 0.2415 fl oz

When to Convert Grams to Fluid Ounces

Grams and fluid ounces 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 and clumping.

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.

Another useful application of weight and volume conversions is chemistry. When performing chemical reactions by combining separate chemicals to produce a new chemical, one must know the exact amount of each chemical to add in order to maximize the yield of the reaction.

It is common to mix powdered chemicals with liquid, or aqueous, chemicals, and this is where it becomes very useful to convert between weights and volumes.[2]

Keep reading to learn more about each unit of measure.

What is a Gram?

A gram is a unit of mass equal to 1/1,000 of a kilogram or 0.035274 ounces, and is equivalent to the mass of one cubic centimeter, or one milliliter, of water.

The gram, or gramme, is an SI unit of mass in the metric system. Grams can be abbreviated as g; for example, 1 gram can be written as 1 g.

A gram is frequently referred to as a unit of weight. While technically, a gram is a measure of mass, and weight is actually a measure of force, the two are equivalent as long as we are performing our calculations on Earth.

For example, an object with a mass of 1 gram weighs 1 gram on Earth, but only weighs one-sixth of that on the moon, yet still has the same mass.

Learn more about grams.

What is a Fluid Ounce?

The US fluid ounce is a unit of volume equal to 1/16 of a pint or 1/8 of a cup. The fluid ounce is sometimes referred to as just an "ounce" but should not be confused with the unit of weight. One fluid ounce is equal to approximately 29.5735 milliliters, but in nutrition labeling, one fluid ounce is rounded to exactly 30 milliliters.[3]

The fluid ounce is a US customary unit of volume. Fluid ounces can be abbreviated as fl oz, and are also sometimes abbreviated as oz fl. For example, 1 fluid ounce can be written as 1 fl oz or 1 oz fl.

Learn more about fluid ounces.

Gram to Fluid Ounce Conversion Table

Gram measurements converted to fluid ounces for commonly used cooking and baking ingredients.
Weight in Grams: Volume in Fluid Ounces of:
Water Milk Cooking Oil All Purpose Flour Granulated Sugar
1 g 0.033814 fl oz 0.032829 fl oz 0.038425 fl oz 0.063921 fl oz 0.04 fl oz
2 g 0.067628 fl oz 0.065658 fl oz 0.07685 fl oz 0.127841 fl oz 0.08 fl oz
3 g 0.101442 fl oz 0.098487 fl oz 0.115275 fl oz 0.191762 fl oz 0.12 fl oz
4 g 0.135256 fl oz 0.131317 fl oz 0.1537 fl oz 0.255683 fl oz 0.16 fl oz
5 g 0.16907 fl oz 0.164146 fl oz 0.192125 fl oz 0.319603 fl oz 0.2 fl oz
6 g 0.202884 fl oz 0.196975 fl oz 0.23055 fl oz 0.383524 fl oz 0.24 fl oz
7 g 0.236698 fl oz 0.229804 fl oz 0.268975 fl oz 0.447445 fl oz 0.28 fl oz
8 g 0.270512 fl oz 0.262633 fl oz 0.3074 fl oz 0.511365 fl oz 0.32 fl oz
9 g 0.304326 fl oz 0.295462 fl oz 0.345825 fl oz 0.575286 fl oz 0.36 fl oz
10 g 0.33814 fl oz 0.328291 fl oz 0.38425 fl oz 0.639206 fl oz 0.4 fl oz
11 g 0.371954 fl oz 0.361121 fl oz 0.422675 fl oz 0.703127 fl oz 0.44 fl oz
12 g 0.405768 fl oz 0.39395 fl oz 0.4611 fl oz 0.767048 fl oz 0.48 fl oz
13 g 0.439582 fl oz 0.426779 fl oz 0.499525 fl oz 0.830968 fl oz 0.52 fl oz
14 g 0.473396 fl oz 0.459608 fl oz 0.53795 fl oz 0.894889 fl oz 0.56 fl oz
15 g 0.50721 fl oz 0.492437 fl oz 0.576375 fl oz 0.95881 fl oz 0.6 fl oz
16 g 0.541024 fl oz 0.525266 fl oz 0.6148 fl oz 1.0227 fl oz 0.64 fl oz
17 g 0.574838 fl oz 0.558096 fl oz 0.653225 fl oz 1.0867 fl oz 0.68 fl oz
18 g 0.608652 fl oz 0.590925 fl oz 0.69165 fl oz 1.1506 fl oz 0.72 fl oz
19 g 0.642466 fl oz 0.623754 fl oz 0.730075 fl oz 1.2145 fl oz 0.76 fl oz
20 g 0.67628 fl oz 0.656583 fl oz 0.768501 fl oz 1.2784 fl oz 0.8 fl oz
21 g 0.710094 fl oz 0.689412 fl oz 0.806926 fl oz 1.3423 fl oz 0.84 fl oz
22 g 0.743908 fl oz 0.722241 fl oz 0.845351 fl oz 1.4063 fl oz 0.88 fl oz
23 g 0.777723 fl oz 0.75507 fl oz 0.883776 fl oz 1.4702 fl oz 0.92 fl oz
24 g 0.811537 fl oz 0.7879 fl oz 0.922201 fl oz 1.5341 fl oz 0.96 fl oz
25 g 0.845351 fl oz 0.820729 fl oz 0.960626 fl oz 1.598 fl oz 1 fl oz
26 g 0.879165 fl oz 0.853558 fl oz 0.999051 fl oz 1.6619 fl oz 1.04 fl oz
27 g 0.912979 fl oz 0.886387 fl oz 1.0375 fl oz 1.7259 fl oz 1.08 fl oz
28 g 0.946793 fl oz 0.919216 fl oz 1.0759 fl oz 1.7898 fl oz 1.12 fl oz
29 g 0.980607 fl oz 0.952045 fl oz 1.1143 fl oz 1.8537 fl oz 1.16 fl oz
30 g 1.0144 fl oz 0.984874 fl oz 1.1528 fl oz 1.9176 fl oz 1.2 fl oz
31 g 1.0482 fl oz 1.0177 fl oz 1.1912 fl oz 1.9815 fl oz 1.24 fl oz
32 g 1.082 fl oz 1.0505 fl oz 1.2296 fl oz 2.0455 fl oz 1.28 fl oz
33 g 1.1159 fl oz 1.0834 fl oz 1.268 fl oz 2.1094 fl oz 1.32 fl oz
34 g 1.1497 fl oz 1.1162 fl oz 1.3065 fl oz 2.1733 fl oz 1.36 fl oz
35 g 1.1835 fl oz 1.149 fl oz 1.3449 fl oz 2.2372 fl oz 1.4 fl oz
36 g 1.2173 fl oz 1.1818 fl oz 1.3833 fl oz 2.3011 fl oz 1.44 fl oz
37 g 1.2511 fl oz 1.2147 fl oz 1.4217 fl oz 2.3651 fl oz 1.48 fl oz
38 g 1.2849 fl oz 1.2475 fl oz 1.4602 fl oz 2.429 fl oz 1.52 fl oz
39 g 1.3187 fl oz 1.2803 fl oz 1.4986 fl oz 2.4929 fl oz 1.56 fl oz
40 g 1.3526 fl oz 1.3132 fl oz 1.537 fl oz 2.5568 fl oz 1.6 fl oz


  1. National Institute of Standards & Technology, Metric Cooking Resources,
  2. CK-12 Foundation, Introductory Chemistry (CK-12) - 12.6: Mass-Volume Stoichiometry,
  3. U.S. Food & Drug Administration, Guidance for Industry: Guidelines for Determining Metric Equivalents of Household Measures,

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