Ounces To Teaspoons Converter - (oz To Tsp) - Inch Calculator

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• Ounces to Teaspoons Conversion Calculator
• How to Convert Ounces to Teaspoons
• Dry vs. Liquid Ounces
• How to Convert Dry Ounces to Teaspoons
• How to Convert Fluid Ounces to Teaspoons
• When to Convert Ounces to Teaspoons
• How Many Teaspoons Are in a Ounce?
• What Is an Ounce?
• What Is a Teaspoon?
• Ounce to Teaspoon Conversion Table
• References

[ see all ] Person Icon By Joe Sexton

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Sexton, J. (n.d.). Ounces to Teaspoons Conversion Calculator. Inch Calculator. Retrieved January 23, 2026, from https://www.inchcalculator.com/convert/ounce-to-teaspoon/

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	8.1584 tsp
2 oz	11.5 tsp	11.17 tsp	13.07 tsp	21.75 tsp	16.32 tsp
3 oz	17.26 tsp	16.75 tsp	19.61 tsp	32.62 tsp	24.48 tsp
4 oz	23.01 tsp	22.34 tsp	26.14 tsp	43.49 tsp	32.63 tsp
5 oz	28.76 tsp	27.92 tsp	32.68 tsp	54.36 tsp	40.79 tsp
6 oz	34.51 tsp	33.5 tsp	39.22 tsp	65.24 tsp	48.95 tsp
7 oz	40.26 tsp	39.09 tsp	45.75 tsp	76.11 tsp	57.11 tsp
8 oz	46.01 tsp	44.67 tsp	52.29 tsp	86.98 tsp	65.27 tsp
9 oz	51.77 tsp	50.26 tsp	58.82 tsp	97.85 tsp	73.43 tsp
10 oz	57.52 tsp	55.84 tsp	65.36 tsp	108.73 tsp	81.58 tsp
11 oz	63.27 tsp	61.43 tsp	71.9 tsp	119.6 tsp	89.74 tsp
12 oz	69.02 tsp	67.01 tsp	78.43 tsp	130.47 tsp	97.9 tsp
13 oz	74.77 tsp	72.59 tsp	84.97 tsp	141.35 tsp	106.06 tsp
14 oz	80.52 tsp	78.18 tsp	91.5 tsp	152.22 tsp	114.22 tsp
15 oz	86.28 tsp	83.76 tsp	98.04 tsp	163.09 tsp	122.38 tsp
16 oz	92.03 tsp	89.35 tsp	104.58 tsp	173.96 tsp	130.53 tsp
17 oz	97.78 tsp	94.93 tsp	111.11 tsp	184.84 tsp	138.69 tsp
18 oz	103.53 tsp	100.51 tsp	117.65 tsp	195.71 tsp	146.85 tsp
19 oz	109.28 tsp	106.1 tsp	124.18 tsp	206.58 tsp	155.01 tsp
20 oz	115.03 tsp	111.68 tsp	130.72 tsp	217.45 tsp	163.17 tsp
21 oz	120.79 tsp	117.27 tsp	137.26 tsp	228.33 tsp	171.33 tsp
22 oz	126.54 tsp	122.85 tsp	143.79 tsp	239.2 tsp	179.48 tsp
23 oz	132.29 tsp	128.44 tsp	150.33 tsp	250.07 tsp	187.64 tsp
24 oz	138.04 tsp	134.02 tsp	156.86 tsp	260.95 tsp	195.8 tsp
25 oz	143.79 tsp	139.6 tsp	163.4 tsp	271.82 tsp	203.96 tsp
26 oz	149.54 tsp	145.19 tsp	169.94 tsp	282.69 tsp	212.12 tsp
27 oz	155.3 tsp	150.77 tsp	176.47 tsp	293.56 tsp	220.28 tsp
28 oz	161.05 tsp	156.36 tsp	183.01 tsp	304.44 tsp	228.44 tsp
29 oz	166.8 tsp	161.94 tsp	189.54 tsp	315.31 tsp	236.59 tsp
30 oz	172.55 tsp	167.52 tsp	196.08 tsp	326.18 tsp	244.75 tsp
31 oz	178.3 tsp	173.11 tsp	202.62 tsp	337.05 tsp	252.91 tsp
32 oz	184.05 tsp	178.69 tsp	209.15 tsp	347.93 tsp	261.07 tsp
33 oz	189.81 tsp	184.28 tsp	215.69 tsp	358.8 tsp	269.23 tsp
34 oz	195.56 tsp	189.86 tsp	222.22 tsp	369.67 tsp	277.39 tsp
35 oz	201.31 tsp	195.45 tsp	228.76 tsp	380.55 tsp	285.54 tsp
36 oz	207.06 tsp	201.03 tsp	235.3 tsp	391.42 tsp	293.7 tsp
37 oz	212.81 tsp	206.61 tsp	241.83 tsp	402.29 tsp	301.86 tsp
38 oz	218.56 tsp	212.2 tsp	248.37 tsp	413.16 tsp	310.02 tsp
39 oz	224.32 tsp	217.78 tsp	254.9 tsp	424.04 tsp	318.18 tsp
40 oz	230.07 tsp	223.37 tsp	261.44 tsp	434.91 tsp	326.34 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.

Ounce to Teaspoon Conversion Table

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	8.1584 tsp
2 oz	11.5 tsp	11.17 tsp	13.07 tsp	21.75 tsp	16.32 tsp
3 oz	17.26 tsp	16.75 tsp	19.61 tsp	32.62 tsp	24.48 tsp
4 oz	23.01 tsp	22.34 tsp	26.14 tsp	43.49 tsp	32.63 tsp
5 oz	28.76 tsp	27.92 tsp	32.68 tsp	54.36 tsp	40.79 tsp
6 oz	34.51 tsp	33.5 tsp	39.22 tsp	65.24 tsp	48.95 tsp
7 oz	40.26 tsp	39.09 tsp	45.75 tsp	76.11 tsp	57.11 tsp
8 oz	46.01 tsp	44.67 tsp	52.29 tsp	86.98 tsp	65.27 tsp
9 oz	51.77 tsp	50.26 tsp	58.82 tsp	97.85 tsp	73.43 tsp
10 oz	57.52 tsp	55.84 tsp	65.36 tsp	108.73 tsp	81.58 tsp
11 oz	63.27 tsp	61.43 tsp	71.9 tsp	119.6 tsp	89.74 tsp
12 oz	69.02 tsp	67.01 tsp	78.43 tsp	130.47 tsp	97.9 tsp
13 oz	74.77 tsp	72.59 tsp	84.97 tsp	141.35 tsp	106.06 tsp
14 oz	80.52 tsp	78.18 tsp	91.5 tsp	152.22 tsp	114.22 tsp
15 oz	86.28 tsp	83.76 tsp	98.04 tsp	163.09 tsp	122.38 tsp
16 oz	92.03 tsp	89.35 tsp	104.58 tsp	173.96 tsp	130.53 tsp
17 oz	97.78 tsp	94.93 tsp	111.11 tsp	184.84 tsp	138.69 tsp
18 oz	103.53 tsp	100.51 tsp	117.65 tsp	195.71 tsp	146.85 tsp
19 oz	109.28 tsp	106.1 tsp	124.18 tsp	206.58 tsp	155.01 tsp
20 oz	115.03 tsp	111.68 tsp	130.72 tsp	217.45 tsp	163.17 tsp
21 oz	120.79 tsp	117.27 tsp	137.26 tsp	228.33 tsp	171.33 tsp
22 oz	126.54 tsp	122.85 tsp	143.79 tsp	239.2 tsp	179.48 tsp
23 oz	132.29 tsp	128.44 tsp	150.33 tsp	250.07 tsp	187.64 tsp
24 oz	138.04 tsp	134.02 tsp	156.86 tsp	260.95 tsp	195.8 tsp
25 oz	143.79 tsp	139.6 tsp	163.4 tsp	271.82 tsp	203.96 tsp
26 oz	149.54 tsp	145.19 tsp	169.94 tsp	282.69 tsp	212.12 tsp
27 oz	155.3 tsp	150.77 tsp	176.47 tsp	293.56 tsp	220.28 tsp
28 oz	161.05 tsp	156.36 tsp	183.01 tsp	304.44 tsp	228.44 tsp
29 oz	166.8 tsp	161.94 tsp	189.54 tsp	315.31 tsp	236.59 tsp
30 oz	172.55 tsp	167.52 tsp	196.08 tsp	326.18 tsp	244.75 tsp
31 oz	178.3 tsp	173.11 tsp	202.62 tsp	337.05 tsp	252.91 tsp
32 oz	184.05 tsp	178.69 tsp	209.15 tsp	347.93 tsp	261.07 tsp
33 oz	189.81 tsp	184.28 tsp	215.69 tsp	358.8 tsp	269.23 tsp
34 oz	195.56 tsp	189.86 tsp	222.22 tsp	369.67 tsp	277.39 tsp
35 oz	201.31 tsp	195.45 tsp	228.76 tsp	380.55 tsp	285.54 tsp
36 oz	207.06 tsp	201.03 tsp	235.3 tsp	391.42 tsp	293.7 tsp
37 oz	212.81 tsp	206.61 tsp	241.83 tsp	402.29 tsp	301.86 tsp
38 oz	218.56 tsp	212.2 tsp	248.37 tsp	413.16 tsp	310.02 tsp
39 oz	224.32 tsp	217.78 tsp	254.9 tsp	424.04 tsp	318.18 tsp
40 oz	230.07 tsp	223.37 tsp	261.44 tsp	434.91 tsp	326.34 tsp

References

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

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