Teaspoons to Ounces Conversion Calculator

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

Results in Ounces:
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1 tsp = 0.17386259276 oz
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How to Convert Teaspoons to Ounces

To convert a teaspoon measurement to an ounce measurement, divide the volume multiplied by the density of the ingredient or material by 5.751669.

You can use this simple formula to convert:

ounces = teaspoons × ingredient density / 5.751669

Thus, the volume in ounces is equal to the teaspoons times the density of the ingredient or material divided by 5.751669.

For example, here's how to convert 5 teaspoons to ounces for an ingredient with a density of 0.7 g/mL.
5 tsp = 5 × 0.7 / 5.751669 = 0.608519074659 oz

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

Teaspoons and 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.

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 volume to weight conversion.

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

Keep reading to learn more about each unit of measure.


The teaspoon is a unit of volume equal to one-third of a tablespoon.[2] One teaspoon is equal to around 4.9 milliliters, but in nutrition labeling, one teaspoon is equal to exactly 5 milliliters.[3]

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.


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.[4]

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.

Teaspoon to Ounce Conversion Table

Teaspoon measurements converted to ounces for commonly used ingredients.
Volume in Teaspoons: Weight in Ounces of:
Water Milk Cooking Oil All Purpose Flour Granulated Sugar
1/8 tsp 0.021733 oz 0.022385 oz 0.019125 oz 0.011497 oz 0.018372 oz
1/4 tsp 0.043466 oz 0.04477 oz 0.03825 oz 0.022993 oz 0.036744 oz
1/3 tsp 0.057954 oz 0.059693 oz 0.051 oz 0.030658 oz 0.048992 oz
1/2 tsp 0.086931 oz 0.089539 oz 0.0765 oz 0.045987 oz 0.073487 oz
2/3 tsp 0.115908 oz 0.119386 oz 0.101999 oz 0.061316 oz 0.097983 oz
3/4 tsp 0.130397 oz 0.134309 oz 0.114749 oz 0.06898 oz 0.110231 oz
1 tsp 0.173863 oz 0.179078 oz 0.152999 oz 0.091973 oz 0.146975 oz


  1. National Institute of Standards & Technology, Metric Cooking Resources, https://www.nist.gov/pml/owm/metric-cooking-resources
  2. Florida Department of Agriculture and Consumer Services, Cooking Conversion Guide, https://www.fdacs.gov/content/download/17165/file/P-01775.pdf
  3. 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
  4. James Bucki, Troy Ounce vs. Ounce, The Spruce, https://www.thesprucecrafts.com/troy-ounce-vs-ounce-4588158

More Teaspoon & Ounce Conversions