A cubic inch is the volume of a one-inch cube.
Cubic inches to Metric teaspoons Converter — in3 to metric tsp
Convert Cubic inch (in3) to Metric teaspoon (metric tsp) using the exact conversion factor (1 cubic inch = 3.2774128 metric teaspoon). See the formula, worked examples, and conversion table.
Cubic inches to Metric teaspoons converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
A metric teaspoon is 5 milliliters.
Result = input x 1.6387064e-5 / 5e-6.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic inches to Metric teaspoons
Cubic inch and Metric teaspoon appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Specifically: A cubic inch is the volume of a one-inch cube, and a metric teaspoon is 5 milliliters.
Formula
metric teaspoons = cubic inches × 3.2774128
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic inch equals 0.000016387064 base units, and 1 metric teaspoon equals 0.000005 base units, so dividing one by the other gives the direct cubic inch-to-metric teaspoon factor of 3.2774128.
Simple example
1 in3 × 3.2774128 = 3.2774128 metric tsp
1 cubic inch = 3.2774128 metric teaspoons.
Real-world example
10 in3 × 3.2774128 = 32.774128 metric tsp
10 cubic inches = 32.774128 metric teaspoons.
Conversion table
| Cubic inch (in3) | Metric teaspoon (metric tsp) |
|---|---|
| 1 in3 | 3.2774128 metric tsp |
| 5 in3 | 16.387064 metric tsp |
| 10 in3 | 32.774128 metric tsp |
| 25 in3 | 81.93532 metric tsp |
| 50 in3 | 163.87064 metric tsp |
| 100 in3 | 327.74128 metric tsp |
Reverse conversion: Metric teaspoon to Cubic inch
3.2774128 metric tsp × 0.3051187205 = 1 in3
3.2774128 metric teaspoons = 1 cubic inches.
cubic inches = metric teaspoons × 0.305118720474
For a page dedicated to this direction, see Metric teaspoon to Cubic inch.
Understanding the Cubic inch (in3)
A cubic inch is the volume of a one-inch cube.
Understanding the Metric teaspoon (metric tsp)
A metric teaspoon is 5 milliliters.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many metric teaspoons are in 1 cubic inch?
1 cubic inch equals 3.2774128 metric teaspoons, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch to metric teaspoon?
Multiply the cubic inch value by 3.2774128. The converter above does this instantly to whatever precision you set.
How do I convert metric teaspoon back to cubic inch?
Use the reverse factor: 1 metric teaspoon equals 0.3051187205 cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic inch?
Cubic inch (in3) is a unit of volume.
What is a metric teaspoon?
Metric teaspoon (metric tsp) is a unit of volume.
Is the cubic inch to metric teaspoon conversion exact?
Yes. Both cubic inch and metric teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 3.2774128 used above is exact to as many digits as you choose to display.