Mass per volume density.
Grains per Teaspoon to Grain per Cubic inches Converter — gr/tsp to gr/in3
Convert Grain per Teaspoon (gr/tsp) to Grain per Cubic inch (gr/in3) using the exact conversion factor (1 grain per teaspoon = 3.324675325 grain per cubic inch). See the formula, worked examples, and conversion table.
Grains per Teaspoon to Grain per Cubic inches converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 13.14667088 / 3.954272101.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Teaspoon to Grain per Cubic inches
Grain per Teaspoon and Grain per Cubic inch both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
grain per cubic inches = grains per teaspoon × 3.32467532468
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per teaspoon equals 13.1466708828 base units, and 1 grain per cubic inch equals 3.95427210146 base units, so dividing one by the other gives the direct grain per teaspoon-to-grain per cubic inch factor of 3.32467532468.
Simple example
1 gr/tsp × 3.324675325 = 3.324675325 gr/in3
1 grain per teaspoon = 3.324675325 grain per cubic inches.
Real-world example
1,000 gr/tsp × 3.324675325 = 3,324.675325 gr/in3
1,000 grains per teaspoon = 3,324.675325 grain per cubic inches.
Conversion table
| Grain per Teaspoon (gr/tsp) | Grain per Cubic inch (gr/in3) |
|---|---|
| 0.1 gr/tsp | 0.3324675325 gr/in3 |
| 1 gr/tsp | 3.324675325 gr/in3 |
| 10 gr/tsp | 33.24675325 gr/in3 |
| 100 gr/tsp | 332.4675325 gr/in3 |
| 1,000 gr/tsp | 3,324.675325 gr/in3 |
| 10,000 gr/tsp | 33,246.75325 gr/in3 |
Reverse conversion: Grain per Cubic inch to Grain per Teaspoon
3.324675325 gr/in3 × 0.30078125 = 1 gr/tsp
3.324675325 grain per cubic inches = 1 grains per teaspoon.
grains per teaspoon = grain per cubic inches × 0.30078125
For a page dedicated to this direction, see Grain per Cubic inch to Grain per Teaspoon.
Understanding the Grain per Teaspoon (gr/tsp)
Mass per volume density.
Understanding the Grain per Cubic inch (gr/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grain per cubic inches are in 1 grain per teaspoon?
1 grain per teaspoon equals 3.324675325 grain per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert grain per teaspoon to grain per cubic inch?
Multiply the grain per teaspoon value by 3.324675325. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic inch back to grain per teaspoon?
Use the reverse factor: 1 grain per cubic inch equals 0.30078125 grains per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per teaspoon?
Grain per Teaspoon (gr/tsp) is a unit of density.
What is a grain per cubic inch?
Grain per Cubic inch (gr/in3) is a unit of density.
Is the grain per teaspoon to grain per cubic inch conversion exact?
Yes. Both grain per teaspoon and grain per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 3.324675325 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.