Teaspoons to Cubic Inches Conversion (tsp to in³)

Teaspoons to Cubic Inches Converter

Enter the volume in teaspoons below to convert it to cubic inches.

Result in Cubic Inches:

1 tsp = 0.300781 in³

How to Convert Teaspoons to Cubic Inches

To convert a measurement in teaspoons to a measurement in cubic inches, multiply the volume by the following conversion ratio: 0.300781 cubic inches/teaspoon.

Since one teaspoon is equal to 0.300781 cubic inches, you can use this simple formula to convert:

cubic inches = teaspoons × 0.300781

The volume in cubic inches is equal to the volume in teaspoons multiplied by 0.300781.

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

cubic inches = (5 tsp × 0.300781) = 1.503906 in³

How Many Cubic Inches Are in a Teaspoon?

There are 0.300781 cubic inches in a teaspoon, which is why we use this value in the formula above.

1 tsp = 0.300781 in³

Teaspoons and cubic inches 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 Cubic Inch?

A cubic inch is a unit of volume equal to the space consumed by a cube with sides that are one inch in all directions. One cubic inch is equivalent to about 16.387 cubic centimeters or 0.554 fluid ounces.^[3]

The cubic inch is a US customary and imperial unit of volume. A cubic inch is sometimes also referred to as a cubic in. Cubic inches can be abbreviated as in³, and are also sometimes abbreviated as cu inch, cu in, or CI. For example, 1 cubic inch can be written as 1 in³, 1 cu inch, 1 cu in, or 1 CI.

Learn more about cubic inches.

Teaspoon to Cubic Inch Conversion Table

Table showing various teaspoon measurements converted to cubic inches.
Teaspoons	Cubic Inches
1 tsp	0.300781 in³
2 tsp	0.601563 in³
3 tsp	0.902344 in³
4 tsp	1.2031 in³
5 tsp	1.5039 in³
6 tsp	1.8047 in³
7 tsp	2.1055 in³
8 tsp	2.4063 in³
9 tsp	2.707 in³
10 tsp	3.0078 in³
11 tsp	3.3086 in³
12 tsp	3.6094 in³
13 tsp	3.9102 in³
14 tsp	4.2109 in³
15 tsp	4.5117 in³
16 tsp	4.8125 in³
17 tsp	5.1133 in³
18 tsp	5.4141 in³
19 tsp	5.7148 in³
20 tsp	6.0156 in³
21 tsp	6.3164 in³
22 tsp	6.6172 in³
23 tsp	6.918 in³
24 tsp	7.2188 in³
25 tsp	7.5195 in³
26 tsp	7.8203 in³
27 tsp	8.1211 in³
28 tsp	8.4219 in³
29 tsp	8.7227 in³
30 tsp	9.0234 in³
31 tsp	9.3242 in³
32 tsp	9.625 in³
33 tsp	9.9258 in³
34 tsp	10.23 in³
35 tsp	10.53 in³
36 tsp	10.83 in³
37 tsp	11.13 in³
38 tsp	11.43 in³
39 tsp	11.73 in³
40 tsp	12.03 in³

Table showing various teaspoon measurements converted to cubic inches.

Teaspoons

Cubic Inches

1 tsp

0.300781 in³

2 tsp

0.601563 in³

3 tsp

0.902344 in³

4 tsp

1.2031 in³

5 tsp

1.5039 in³

6 tsp

1.8047 in³

7 tsp

2.1055 in³

8 tsp

2.4063 in³

9 tsp

2.707 in³

10 tsp

3.0078 in³

11 tsp

3.3086 in³

12 tsp

3.6094 in³

13 tsp

3.9102 in³

14 tsp

4.2109 in³

15 tsp

4.5117 in³

16 tsp

4.8125 in³

17 tsp

5.1133 in³

18 tsp

5.4141 in³

19 tsp

5.7148 in³

20 tsp

6.0156 in³

21 tsp

6.3164 in³

22 tsp

6.6172 in³

23 tsp

6.918 in³

24 tsp

7.2188 in³

25 tsp

7.5195 in³

26 tsp

7.8203 in³

27 tsp

8.1211 in³

28 tsp

8.4219 in³

29 tsp

8.7227 in³

30 tsp

9.0234 in³

31 tsp

9.3242 in³

32 tsp

9.625 in³

33 tsp

9.9258 in³

34 tsp

10.23 in³

35 tsp

10.53 in³

36 tsp

10.83 in³

37 tsp

11.13 in³

38 tsp

11.43 in³

39 tsp

11.73 in³

40 tsp

12.03 in³

References

Florida Department of Agriculture and Consumer Services, Cooking Conversion Guide, https://www.fdacs.gov/content/download/17165/file/P-01775.pdf
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
National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf