Teaspoons To Cups Conversion (tsp To C) - Inch Calculator

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• Teaspoons to Cups Converter
• How to Convert Teaspoons to Cups
• What Is a Teaspoon?
• What Is a Cup?
• Teaspoon to Cup Conversion Table
• References

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.). Teaspoons to Cups Converter. Inch Calculator. Retrieved December 23, 2025, from https://www.inchcalculator.com/convert/teaspoon-to-cup/

How to Convert Teaspoons to Cups

To convert a measurement in teaspoons to a measurement in cups, divide the volume by the following conversion ratio: 48 teaspoons/cup.

Since there are 48 teaspoons in a cup, you can divide the number of teaspoons by 48 to convert:

cups = teaspoons ÷ 48

The volume in cups is equal to the volume in teaspoons divided by 48.

For example, here's how to convert 12 teaspoons to cups using the formula above.

cups = (12 tsp ÷ 48) = 0.25 c

Teaspoons and cups are both units used to measure volume. 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.[1] One teaspoon is equal to approximately 4.929 milliliters, but in nutrition labeling, one teaspoon is equal to exactly 5 milliliters.[2]

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 Cup?

The cup is a unit of volume equal to 16 tablespoons or 8 fluid ounces. The cup should not be confused with the metric cup or the teacup, which are different units of volume.

One standard cup is equal to 236.588 milliliters, but for nutrition labeling, one cup is defined as 240 milliliters.[2] To further confuse things, a metric cup is equal to 250 mL, while in Japan, a cup is equivalent to only 200 mL.

The cup is a US customary unit of volume. Cups can be abbreviated as c, and are also sometimes abbreviated as C. For example, 1 cup can be written as 1 c or 1 C.

Learn more about cups.

Teaspoon to Cup Conversion Table

Table showing various teaspoon measurements converted to cups.

Teaspoons	Cups
1 tsp	0.020833 c
2 tsp	0.041667 c
3 tsp	0.0625 c
4 tsp	0.083333 c
5 tsp	0.104167 c
6 tsp	0.125 c
7 tsp	0.145833 c
8 tsp	0.166667 c
9 tsp	0.1875 c
10 tsp	0.208333 c
11 tsp	0.229167 c
12 tsp	0.25 c
13 tsp	0.270833 c
14 tsp	0.291667 c
15 tsp	0.3125 c
16 tsp	0.333333 c
17 tsp	0.354167 c
18 tsp	0.375 c
19 tsp	0.395833 c
20 tsp	0.416667 c
21 tsp	0.4375 c
22 tsp	0.458333 c
23 tsp	0.479167 c
24 tsp	0.5 c
25 tsp	0.520833 c
26 tsp	0.541667 c
27 tsp	0.5625 c
28 tsp	0.583333 c
29 tsp	0.604167 c
30 tsp	0.625 c
31 tsp	0.645833 c
32 tsp	0.666667 c
33 tsp	0.6875 c
34 tsp	0.708333 c
35 tsp	0.729167 c
36 tsp	0.75 c
37 tsp	0.770833 c
38 tsp	0.791667 c
39 tsp	0.8125 c
40 tsp	0.833333 c

References

1. Florida Department of Agriculture and Consumer Services, Cooking Conversion Guide, https://www.fdacs.gov/content/download/17165/file/P-01775.pdf
2. 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

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