Mass per volume density.
Grains per Teaspoon to Stone per Cubic inches Converter — gr/tsp to st/in3
Convert Grain per Teaspoon (gr/tsp) to Stone per Cubic inch (st/in3) using the exact conversion factor (1 grain per teaspoon = 0.0000339253 stone per cubic inch). See the formula, worked examples, and conversion table.
Grains per Teaspoon to Stone 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 / 387518.6659.
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 Stone per Cubic inches
Grain per Teaspoon and Stone 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
stone per cubic inches = grains per teaspoon × 0.0000339252584151
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 stone per cubic inch equals 387518.665943 base units, so dividing one by the other gives the direct grain per teaspoon-to-stone per cubic inch factor of 0.0000339252584151.
Simple example
1 gr/tsp × 0.00003392525842 = 0.0000339253 st/in3
1 grain per teaspoon = 0.0000339253 stone per cubic inches.
Real-world example
1,000 gr/tsp × 0.00003392525842 = 0.0339252584 st/in3
1,000 grains per teaspoon = 0.0339252584 stone per cubic inches.
Conversion table
| Grain per Teaspoon (gr/tsp) | Stone per Cubic inch (st/in3) |
|---|---|
| 0.1 gr/tsp | 0.0000033925 st/in3 |
| 1 gr/tsp | 0.0000339253 st/in3 |
| 10 gr/tsp | 0.0003392526 st/in3 |
| 100 gr/tsp | 0.0033925258 st/in3 |
| 1,000 gr/tsp | 0.0339252584 st/in3 |
| 10,000 gr/tsp | 0.3392525842 st/in3 |
Reverse conversion: Stone per Cubic inch to Grain per Teaspoon
0.0000339253 st/in3 × 29476.5625 = 1.000001226 gr/tsp
0.0000339253 stone per cubic inches = 1.000001226 grains per teaspoon.
grains per teaspoon = stone per cubic inches × 29476.5625
For a page dedicated to this direction, see Stone per Cubic inch to Grain per Teaspoon.
Understanding the Grain per Teaspoon (gr/tsp)
Mass per volume density.
Understanding the Stone per Cubic inch (st/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stone per cubic inches are in 1 grain per teaspoon?
1 grain per teaspoon equals 0.0000339253 stone per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert grain per teaspoon to stone per cubic inch?
Multiply the grain per teaspoon value by 0.00003392525842. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic inch back to grain per teaspoon?
Use the reverse factor: 1 stone per cubic inch equals 29,476.5625 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 stone per cubic inch?
Stone per Cubic inch (st/in3) is a unit of density.
Is the grain per teaspoon to stone per cubic inch conversion exact?
Yes. Both grain per teaspoon and stone per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 0.00003392525842 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.