Ounces to Teaspoons Conversion Calculator

Enter the weight or volume in ounces below to calculate the volume in teaspoons.


Result in Teaspoons:

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1 oz = 5.751668510898 tsp
1 oz ≈ 5 3/4 tsp

Result in Teaspoons:

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1 fl oz = 6 tsp

Do you want to convert teaspoons to ounces or fluid ounces?

How to Convert Ounces to Teaspoons

Since ounces are a unit of mass and teaspoons 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 ounces and teaspoons of an ingredient or substance, we must either multiply or divide by its density, depending on which direction we are performing the conversion.

Dry vs. Liquid Ounces

When converting ounces to teaspoons, it's important to keep in mind that dry measurements, such as flour or sugar, are measured by weight, and liquid measurements, such as water, are measured by volume.

When measuring a liquid, the measurement is actually the volume of liquid in fluid ounces, while for dry measurements, it's a weight. This is important to remember since there are different conversion formulas for each.

How to Convert Dry Ounces to Teaspoons

To convert a measurement in ounces to teaspoons, divide the weight multiplied by 5.7517 by the density of the ingredient or material.

You can use this simple formula to convert:

teaspoons = ounces × 5.7517 / density

Thus, the volume in teaspoons is equal to the weight in ounces times 5.7517, divided by the density of the ingredient or material.

For example, here's how to convert 5 ounces to teaspoons for an ingredient with a density of 0.7 g/mL.
teaspoons = 5 oz × 5.7517 / 0.7 g/mL = 41.0833 tsp

How to Convert Fluid Ounces to Teaspoons

The conversion for fluid ounces is more straightforward since both units are volumes.

To convert fluid ounces to teaspoons, multiply the volume by the conversion ratio.

Since one fluid ounce is equal to 6 teaspoons, you can use this simple formula to convert:

teaspoons = fluid ounces × 6

The volume in teaspoons is equal to the fluid ounces multiplied by 6.

For example, here's how to convert 5 fluid ounces to teaspoons using the formula above.
teaspoons = 5 fl oz × 6 = 30 tsp

When to Convert Ounces to Teaspoons

Ounces and teaspoons 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.

For cooking and baking ingredients, you can get more specific results using our butter, flour, and sugar conversion calculators.

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.

How Many Teaspoons Are in a Ounce?

The actual volume of a ounce will vary depending on the density of the material. The table below shows how many teaspoons of various wet and dry ingredients are in a ounce.

Ounce measurements converted to teaspoons for commonly used cooking and baking ingredients.
Weight in Ounces: Volume in Teaspoons of:
Water Milk Cooking Oil All Purpose Flour Granulated Sugar
1 oz 5.7517 tsp 5.5841 tsp 6.536 tsp 10.87 tsp 6.8039 tsp
2 oz 11.5 tsp 11.17 tsp 13.07 tsp 21.75 tsp 13.61 tsp
3 oz 17.26 tsp 16.75 tsp 19.61 tsp 32.62 tsp 20.41 tsp
4 oz 23.01 tsp 22.34 tsp 26.14 tsp 43.49 tsp 27.22 tsp
5 oz 28.76 tsp 27.92 tsp 32.68 tsp 54.36 tsp 34.02 tsp
6 oz 34.51 tsp 33.5 tsp 39.22 tsp 65.24 tsp 40.82 tsp
7 oz 40.26 tsp 39.09 tsp 45.75 tsp 76.11 tsp 47.63 tsp
8 oz 46.01 tsp 44.67 tsp 52.29 tsp 86.98 tsp 54.43 tsp
9 oz 51.77 tsp 50.26 tsp 58.82 tsp 97.85 tsp 61.23 tsp
10 oz 57.52 tsp 55.84 tsp 65.36 tsp 108.73 tsp 68.04 tsp
11 oz 63.27 tsp 61.43 tsp 71.9 tsp 119.6 tsp 74.84 tsp
12 oz 69.02 tsp 67.01 tsp 78.43 tsp 130.47 tsp 81.65 tsp
13 oz 74.77 tsp 72.59 tsp 84.97 tsp 141.35 tsp 88.45 tsp
14 oz 80.52 tsp 78.18 tsp 91.5 tsp 152.22 tsp 95.25 tsp
15 oz 86.28 tsp 83.76 tsp 98.04 tsp 163.09 tsp 102.06 tsp
16 oz 92.03 tsp 89.35 tsp 104.58 tsp 173.96 tsp 108.86 tsp
17 oz 97.78 tsp 94.93 tsp 111.11 tsp 184.84 tsp 115.67 tsp
18 oz 103.53 tsp 100.51 tsp 117.65 tsp 195.71 tsp 122.47 tsp
19 oz 109.28 tsp 106.1 tsp 124.18 tsp 206.58 tsp 129.27 tsp
20 oz 115.03 tsp 111.68 tsp 130.72 tsp 217.45 tsp 136.08 tsp
21 oz 120.79 tsp 117.27 tsp 137.26 tsp 228.33 tsp 142.88 tsp
22 oz 126.54 tsp 122.85 tsp 143.79 tsp 239.2 tsp 149.69 tsp
23 oz 132.29 tsp 128.44 tsp 150.33 tsp 250.07 tsp 156.49 tsp
24 oz 138.04 tsp 134.02 tsp 156.86 tsp 260.95 tsp 163.29 tsp
25 oz 143.79 tsp 139.6 tsp 163.4 tsp 271.82 tsp 170.1 tsp
26 oz 149.54 tsp 145.19 tsp 169.94 tsp 282.69 tsp 176.9 tsp
27 oz 155.3 tsp 150.77 tsp 176.47 tsp 293.56 tsp 183.7 tsp
28 oz 161.05 tsp 156.36 tsp 183.01 tsp 304.44 tsp 190.51 tsp
29 oz 166.8 tsp 161.94 tsp 189.54 tsp 315.31 tsp 197.31 tsp
30 oz 172.55 tsp 167.52 tsp 196.08 tsp 326.18 tsp 204.12 tsp
31 oz 178.3 tsp 173.11 tsp 202.62 tsp 337.05 tsp 210.92 tsp
32 oz 184.05 tsp 178.69 tsp 209.15 tsp 347.93 tsp 217.72 tsp
33 oz 189.81 tsp 184.28 tsp 215.69 tsp 358.8 tsp 224.53 tsp
34 oz 195.56 tsp 189.86 tsp 222.22 tsp 369.67 tsp 231.33 tsp
35 oz 201.31 tsp 195.45 tsp 228.76 tsp 380.55 tsp 238.14 tsp
36 oz 207.06 tsp 201.03 tsp 235.3 tsp 391.42 tsp 244.94 tsp
37 oz 212.81 tsp 206.61 tsp 241.83 tsp 402.29 tsp 251.74 tsp
38 oz 218.56 tsp 212.2 tsp 248.37 tsp 413.16 tsp 258.55 tsp
39 oz 224.32 tsp 217.78 tsp 254.9 tsp 424.04 tsp 265.35 tsp
40 oz 230.07 tsp 223.37 tsp 261.44 tsp 434.91 tsp 272.16 tsp

What Is an Ounce?

One ounce is a unit of mass/weight equal to 1/16 of a pound or 28.349523 grams. The common ounce should not be confused with the troy ounce, which is equal to 1/12 of a troy pound.[3]

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

An ounce is frequently referred to as a unit of weight. While technically, an ounce 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 ounce weighs 1 ounce on Earth, but only weighs one-sixth of that on the moon, yet still has the same mass.

Remember that liquid measurements use the fluid ounce, which is a volume measurement.

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.[4]

It's also denoted a little differently, so you can distinguish both forms of measurement on packaging or in recipes.

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 ounces.

What Is a Teaspoon?

The teaspoon is a unit of volume equal to 1/3 of a tablespoon or 1/6 of a fluid ounce.[5] One teaspoon is equal to approximately 4.929 milliliters, but in nutrition labeling, one teaspoon is equal to exactly 5 milliliters.[4]

The teaspoon is a US customary unit of volume. Teaspoons can be abbreviated as tsp, and are also sometimes abbreviated as t, ts, or tspn. For example, 1 teaspoon can be written as 1 tsp, 1 t, 1 ts, or 1 tspn.

Learn more about teaspoons.


  1. National Institute of Standards & Technology, Culinary Measurement Tips, https://www.nist.gov/pml/owm/culinary-measurement-tips
  2. CK-12 Foundation, Introductory Chemistry (CK-12) - 12.6: Mass-Volume Stoichiometry, https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/12%3A_Stoichiometry/12.06%3A_Mass-Volume_Stoichiometry
  3. James Bucki, Troy Ounce vs. Ounce, The Spruce, https://www.thesprucecrafts.com/troy-ounce-vs-ounce-4588158
  4. U.S. Food & Drug Administration, Guidance for Industry: Guidelines for Determining Metric Equivalents of Household Measures, https://www.fda.gov/regulatory-information/search-fda-guidance-documents/guidance-industry-guidelines-determining-metric-equivalents-household-measures
  5. Florida Department of Agriculture and Consumer Services, Cooking Conversion Guide, https://www.fdacs.gov/content/download/17165/file/P-01775.pdf

More Ounce & Teaspoon Conversions