Cups To Teaspoons Conversion (c To Tsp) - Inch Calculator

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• Cups to Teaspoons Converter
• How to Convert Cups to Teaspoons
• How Many Teaspoons Are in a Cup?
• What Is a Cup?
• What Is a Teaspoon?
• Cup to Teaspoon 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.). Cups to Teaspoons Converter. Inch Calculator. Retrieved December 26, 2025, from https://www.inchcalculator.com/convert/cup-to-teaspoon/

How to Convert Cups to Teaspoons

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

Since one cup is equal to 48 teaspoons, you can use this simple formula to convert:

teaspoons = cups × 48

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

For example, here's how to convert 5 cups to teaspoons using the formula above.

teaspoons = (5 c × 48) = 240 tsp

How Many Teaspoons Are in a Cup?

There are 48 teaspoons in a cup, which is why we use this value in the formula above.

1 c = 48 tsp

For fractional cups, such as those used in cooking and baking, multiply the fraction by 48 to convert the measurement to teaspoons. If you have a fraction of a cup, multiplying it by 48 gives you the equivalent volume in teaspoons.

For partial cups, use these quick conversions:

Measuring Spoon IconPartial Cups to Tsp

• Teaspoons in 1/8 cupChevron Right Icon
• Teaspoons in 1/4 cupChevron Right Icon
• Teaspoons in 1/3 cupChevron Right Icon
• Teaspoons in 1/2 cupChevron Right Icon
• Teaspoons in 2/3 cupChevron Right Icon
• Teaspoons in 3/4 cupChevron Right Icon

Cups and teaspoons are both units used to measure volume. Keep reading to learn more about each unit of measure.

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.[1] 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.

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.[2] One teaspoon is equal to approximately 4.929 milliliters, but in nutrition labeling, one teaspoon is equal to exactly 5 milliliters.[1]

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.

Cup to Teaspoon Conversion Table

Table showing various cup measurements converted to teaspoons.

Cups	Teaspoons
1 c	48 tsp
2 c	96 tsp
3 c	144 tsp
4 c	192 tsp
5 c	240 tsp
6 c	288 tsp
7 c	336 tsp
8 c	384 tsp
9 c	432 tsp
10 c	480 tsp
11 c	528 tsp
12 c	576 tsp
13 c	624 tsp
14 c	672 tsp
15 c	720 tsp
16 c	768 tsp
17 c	816 tsp
18 c	864 tsp
19 c	912 tsp
20 c	960 tsp
21 c	1,008 tsp
22 c	1,056 tsp
23 c	1,104 tsp
24 c	1,152 tsp
25 c	1,200 tsp
26 c	1,248 tsp
27 c	1,296 tsp
28 c	1,344 tsp
29 c	1,392 tsp
30 c	1,440 tsp
31 c	1,488 tsp
32 c	1,536 tsp
33 c	1,584 tsp
34 c	1,632 tsp
35 c	1,680 tsp
36 c	1,728 tsp
37 c	1,776 tsp
38 c	1,824 tsp
39 c	1,872 tsp
40 c	1,920 tsp

References

1. 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
2. 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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