Convert Metric Teaspoon to Cubic Inch
Convert metric teaspoons to cubic inches instantly. 1 metric teaspoon = 0.3051187205 cubic inch — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Cubic Inch to Metric Teaspoon converter for the reverse conversion.
Units explained
Metric Teaspoon
A metric teaspoon is exactly 5 milliliters.
Adopted as the standard metric small cooking measure.
Universal in metric recipes and liquid medicine dosing.
Metrication.
Cubic Inch
A cubic inch is the volume of a cube one inch on a side (16.387 mL).
Derived by cubing the international inch (25.4 mm).
Used for engine displacement and small-part volumes.
1959 yard agreement.
Metric Teaspoon to Cubic Inch conversion formula
The relationship between metric teaspoons and cubic inches:
To convert metric teaspoons to cubic inches, multiply the value in metric teaspoons by 0.3051187205. To reverse, multiply cubic inches by 3.2774128.
How to use this converter
Type a value into the calculator. The result in cubic inches updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Cubic Inch to Metric Teaspoon converter for the reverse direction.
Step-by-step: convert metric teaspoons to cubic inches
- Write down the value in metric teaspoons (tsp).
- Multiply that value by the factor 0.3051187205.
- The product is the equivalent value in cubic inches (in³).
- To reverse, multiply the cubic inch value by 3.2774128.
Worked examples
Example 1 — Convert 1 tsp to in³:
1 × 0.3051187205 = 0.3051187205 in³
Example 2 — Convert 100 tsp to in³:
100 × 0.3051187205 = 30.5118720474 in³
Real-world example — Plastic-film thickness alternates
A 150-metric teaspoon plastic film converts cleanly to cubic inches — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 tsp × 0.3051187205 = 45.767808071 in³
Real-world example — Hair-width scale measurements
A 70-metric teaspoon measurement (about the diameter of a human hair) is the kind of value materials engineers regularly express in adjacent micro-scale units like cubic inches for direct comparison across supplier datasheets.
70 tsp × 0.3051187205 = 21.3583104332 in³
Real-world example — Paper and film thicknesses
At the thickness of office paper (roughly 3 metric teaspoons), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.
3 tsp × 0.3051187205 = 0.9153561614 in³
Metric Teaspoon to Cubic Inch conversion table
Standard reference values for converting metric teaspoons to cubic inches:
| Metric Teaspoon [tsp] | Cubic Inch [in³] |
|---|---|
| 0.01 | 0.0030511872 |
| 0.1 | 0.030511872 |
| 1 | 0.3051187205 |
| 2 | 0.6102374409 |
| 3 | 0.9153561614 |
| 4 | 1.2204748819 |
| 5 | 1.5255936024 |
| 10 | 3.0511872047 |
| 20 | 6.1023744095 |
| 30 | 9.1535616142 |
| 40 | 12.2047488189 |
| 50 | 15.2559360237 |
| 100 | 30.5118720474 |
| 500 | 152.5593602368 |
| 1000 | 305.1187204737 |
Frequently asked questions
How many cubic inches is 1 metric teaspoon?
How do I convert metric teaspoons to cubic inches?
How do I convert cubic inches back to metric teaspoons?
How many cubic inches is 100 metric teaspoons?
Popular volume unit conversions
Convert Metric Teaspoon to other volume units
Show all Metric Teaspoon conversions
Metric / SI (8 units)
US Customary (Liquid) (8 units)
Imperial (UK) (4 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (2 units)
Sources & references
Conversion factor (1 tsp = 0.3051187205 in³) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.