Convert Teaspoons to cubic inches

1 teaspoon = 0.300781 cubic inches · in³ = tsp ÷ 3.324675325

tsp
Cubic inches
0.300781in³

1 teaspoon = 0.300781 cubic inches

When you need this conversion

This conversion goes from teaspoons, a standard cooking and dosing measure of about 5 milliliters, to cubic inches, used for engine displacement and small volumes. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.

Teaspoons to cubic inches conversion table

Conversion table from teaspoons to cubic inches
Teaspoons (tsp)Cubic inches (in³)
1 tsp0.300781 in³
2 tsp0.601563 in³
3 tsp0.902344 in³
5 tsp1.5039 in³
10 tsp3.0078 in³
15 tsp4.5117 in³
20 tsp6.0156 in³
25 tsp7.5195 in³
50 tsp15.0391 in³
75 tsp22.5586 in³
100 tsp30.0781 in³
250 tsp75.1953 in³
500 tsp150.39 in³
1,000 tsp300.78 in³

The formula

in³ = tsp ÷ 3.324675325

Because both units measure volume, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.

Convert the other way

Cubic inches to teaspoons →

Related volume conversions

All volume conversions →

Frequently asked questions

How many cubic inches are in a teaspoon?
There are 0.300781 cubic inches in 1 teaspoon. The formula is in³ = tsp ÷ 3.324675325.
How do you convert teaspoons to cubic inches?
Use the formula in³ = tsp ÷ 3.324675325. For example, 10 teaspoons equals 3.0078 cubic inches.
Is the teaspoons to cubic inches conversion exact?
Yes. Teaspoons and cubic inches are both units of volume, related by an exact defined factor. Displayed results are rounded for readability.
What is tsp short for?
tsp is the standard symbol for teaspoon. in³ is the symbol for cubic inch.