Mass per volume density.
Grains per Teaspoon to Stones per Milliliter Converter — gr/tsp to st/mL
Convert Grain per Teaspoon (gr/tsp) to Stone per Milliliter (st/mL) using the exact conversion factor (1 grain per teaspoon = 0.0000020702 stone per milliliter). See the formula, worked examples, and conversion table.
Grains per Teaspoon to Stones per Milliliter 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 / 6.35029318e+6.
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 Stones per Milliliter
Grain per Teaspoon and Stone per Milliliter 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
stones per milliliter = grains per teaspoon × 0.00000207024628787
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 milliliter equals 6350293.18 base units, so dividing one by the other gives the direct grain per teaspoon-to-stone per milliliter factor of 0.00000207024628787.
Simple example
1 gr/tsp × 0.000002070246288 = 0.0000020702 st/mL
1 grain per teaspoon = 0.0000020702 stones per milliliter.
Real-world example
1,000 gr/tsp × 0.000002070246288 = 0.0020702463 st/mL
1,000 grains per teaspoon = 0.0020702463 stones per milliliter.
Conversion table
| Grain per Teaspoon (gr/tsp) | Stone per Milliliter (st/mL) |
|---|---|
| 0.1 gr/tsp | 2.070246e-7 st/mL |
| 1 gr/tsp | 0.0000020702 st/mL |
| 10 gr/tsp | 0.0000207025 st/mL |
| 100 gr/tsp | 0.0002070246 st/mL |
| 1,000 gr/tsp | 0.0020702463 st/mL |
| 10,000 gr/tsp | 0.0207024629 st/mL |
Reverse conversion: Stone per Milliliter to Grain per Teaspoon
0.0000020702 st/mL × 483034.3162 = 0.9999776414 gr/tsp
0.0000020702 stones per milliliter = 0.9999776414 grains per teaspoon.
grains per teaspoon = stones per milliliter × 483034.316188
For a page dedicated to this direction, see Stone per Milliliter to Grain per Teaspoon.
Understanding the Grain per Teaspoon (gr/tsp)
Mass per volume density.
Understanding the Stone per Milliliter (st/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per milliliter are in 1 grain per teaspoon?
1 grain per teaspoon equals 0.0000020702 stones per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert grain per teaspoon to stone per milliliter?
Multiply the grain per teaspoon value by 0.000002070246288. The converter above does this instantly to whatever precision you set.
How do I convert stone per milliliter back to grain per teaspoon?
Use the reverse factor: 1 stone per milliliter equals 483,034.3162 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 milliliter?
Stone per Milliliter (st/mL) is a unit of density.
Is the grain per teaspoon to stone per milliliter conversion exact?
Yes. Both grain per teaspoon and stone per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.000002070246288 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.