Teaspoons to Kilograms Conversion Calculator

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


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Result in Kilograms:

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1 tsp = 0.004928921594 kg

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How to Convert Teaspoons to Kilograms

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

Teaspoons to Kilograms Formula

To convert a measurement in teaspoons to kilograms, multiply the volume by the density of the ingredient, substance, or material. Note that in order for this to work, the density must be in kilograms per teaspoon (kg/tsp).

If the density is given in grams per milliliter (g/mL), then first divide the density by 202.8841 to convert to kg/tsp.

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

kilograms = teaspoons × density / 202.8841

Thus, the weight in kilograms is equal to the volume in teaspoons times the density (in g/mL) of the ingredient or material divided by 202.8841.

For example, here's how to convert 500 teaspoons to kilograms for an ingredient with a density of 0.7 g/mL.
kilograms = 500 tsp × 0.7 g/mL / 202.8841 = 1.7251 kg

When to Convert Teaspoons to Kilograms

Teaspoons and kilograms 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 volume to weight 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]

A third application of weight and volume conversions is when shipping freight when calculating the volumetric weight for cargo and packages. Trucks, ships, and airplanes are limited in the amount of weight or volume they can transport, so if one of those quantities is known, but the limitation is on the other, then it becomes necessary to convert between the two so as not to overload the shipping vehicle.

Keep reading to learn more about each unit of measure.

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.[3] 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.

What Is a Kilogram?

One kilogram is equal to 1,000 grams, 2.204623 pounds, or 1/1,000 of a metric ton.

The formal definition of the kilogram changed in 2019. One kilogram was previously equal to the mass of the platinum-iridium bar, known as the International Prototype of the Kilogram, which was stored in Sèvres, France.

The 2019 SI brochure now defines the kilogram using the Planck constant, and it is defined using the meter and second.[5] It is equal to the mass of 1,000 cubic centimeters, or milliliters, of water.

The kilogram, or kilogramme, is the SI base unit for mass and is also a multiple of the gram. In the metric system, "kilo" is the prefix for thousands, or 103. Kilograms can be abbreviated as kg; for example, 1 kilogram can be written as 1 kg.

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

Learn more about kilograms.

Teaspoon to Kilogram Conversion Table

Teaspoon measurements converted to kilograms for commonly used cooking and baking ingredients.
Volume in Teaspoons: Weight in Kilograms of:
Water Milk Cooking Oil All Purpose Flour Granulated Sugar
1/8 tsp 0.000616 kg 0.000635 kg 0.000542 kg 0.000326 kg 0.000521 kg
1/4 tsp 0.001232 kg 0.001269 kg 0.001084 kg 0.000652 kg 0.001042 kg
1/3 tsp 0.001643 kg 0.001692 kg 0.001446 kg 0.000869 kg 0.001389 kg
1/2 tsp 0.002464 kg 0.002538 kg 0.002169 kg 0.001304 kg 0.002083 kg
2/3 tsp 0.003286 kg 0.003385 kg 0.002892 kg 0.001738 kg 0.002778 kg
3/4 tsp 0.003697 kg 0.003808 kg 0.003253 kg 0.001956 kg 0.003125 kg
1 tsp 0.004929 kg 0.005077 kg 0.004337 kg 0.002607 kg 0.004167 kg


  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. Florida Department of Agriculture and Consumer Services, Cooking Conversion Guide, https://www.fdacs.gov/content/download/17165/file/P-01775.pdf
  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. International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf

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