Cubic Inch to Teaspoon (US) Converter

Volume Converter

40 units available

Decimals:

From

To

3.324675

1 in³ = 3.324675 tsp

Formula:

tsp = in³ × 3.3246753247

With your value: 1 in³ = 3.32467532 tsp

How big is that?

Everyday references on a logarithmic scale, all expressed in cubic inch so you can sanity-check the result.

Soda can (1/50 your value)0.0201 in³

Milk carton (1/16 your value)0.0610 in³

Kitchen bucket (1/1.6 your value)0.610 in³

Your value1.00 in³

Car fuel tank (3.1× your value)3.05 in³

Bathtub (12× your value)12.2 in³

Other Cubic Inch to Teaspoon (US) conversions

2 in³ to tsp 3 in³ to tsp 4 in³ to tsp 5 in³ to tsp 6 in³ to tsp 7 in³ to tsp 8 in³ to tsp

Cubic Inch to Teaspoon (US) Conversion Table

Cubic Inch (in³)	Teaspoon (US) (tsp)
0.5	1.662338
1	3.324675
2	6.649351
5	16.623377
10	33.246753
15	49.87013
20	66.493506
25	83.116883
50	166.233766
100	332.467532
250	831.168831
500	1,662.337662
1000	3,324.675325

Teaspoon (US) to Cubic Inch Conversion Table

Teaspoon (US) (tsp)	Cubic Inch (in³)
0.5	0.150391
1	0.300781
2	0.601563
5	1.503906
10	3.007813
15	4.511719
20	6.015625
25	7.519531
50	15.039063
100	30.078125
250	75.195313
500	150.390625
1000	300.78125

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Cubic Inch (in³)

Volume

Exact conversion

Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Teaspoon (US) (tsp)

Volume

Exact conversion

Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Cubic Inch to Teaspoon (US)

To convert from Cubic Inch (in³) to Teaspoon (US) (tsp), multiply the value by 3.3246753247.

Formula: tsp = in³ × 3.3246753247

Reverse: in³ = tsp × 0.30078125

Step-by-Step Example

Start with your value in Cubic Inch. For example: 5 in³
Multiply by the conversion factor: 5 x 3.3246753247
The result is: 16.623377 tsp

About Cubic Inch

The cubic inch (in³) is a unit of volume and capacity. One cubic inch equals 0.016387064 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: volume calculations, engineering and science, education.

About Teaspoon (US)

The US teaspoon equals approximately 4.93 mL. It is one of the most common cooking measurements.

Common uses: cooking, medicine dosage, baking.

Frequently Asked Questions

How many Teaspoon (US) are in 1 Cubic Inch?

There are exactly 3.3246753247 Teaspoon (US) in 1 Cubic Inch. This means the conversion factor from Cubic Inch to Teaspoon (US) is 3.3246753247.

What is the formula to convert Cubic Inch to Teaspoon (US)?

The formula to convert Cubic Inch to Teaspoon (US) is: tsp = in³ × 3.3246753247. For example, to convert 10 Cubic Inch to Teaspoon (US), you would multiply 10 by 3.3246753247.

What is a Cubic Inch?