Mass per volume density.
Stones per Pint to Grains per Teaspoon Converter — st/pt to gr/tsp
Convert Stone per Pint (st/pt) to Grain per Teaspoon (gr/tsp) using the exact conversion factor (1 stone per pint = 1,020.833333 grain per teaspoon). See the formula, worked examples, and conversion table.
Stones per Pint to Grains per Teaspoon 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 13420.55986 / 13.14667088.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Pint to Grains per Teaspoon
Stone per Pint and Grain per Teaspoon 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
grains per teaspoon = stones per pint × 1020.83333333
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per pint equals 13420.5598595 base units, and 1 grain per teaspoon equals 13.1466708828 base units, so dividing one by the other gives the direct stone per pint-to-grain per teaspoon factor of 1020.83333333.
Simple example
1 st/pt × 1020.833333 = 1,020.833333 gr/tsp
1 stone per pint = 1,020.833333 grains per teaspoon.
Real-world example
1,000 st/pt × 1020.833333 = 1,020,833.333 gr/tsp
1,000 stones per pint = 1,020,833.333 grains per teaspoon.
Conversion table
| Stone per Pint (st/pt) | Grain per Teaspoon (gr/tsp) |
|---|---|
| 0.1 st/pt | 102.0833333 gr/tsp |
| 1 st/pt | 1,020.833333 gr/tsp |
| 10 st/pt | 10,208.33333 gr/tsp |
| 100 st/pt | 102,083.3333 gr/tsp |
| 1,000 st/pt | 1,020,833.333 gr/tsp |
| 10,000 st/pt | 10,208,333.33 gr/tsp |
Reverse conversion: Grain per Teaspoon to Stone per Pint
1 gr/tsp × 0.0009795918367 = 0.0009795918 st/pt
1 grain per teaspoon = 0.0009795918 stones per pint.
stones per pint = grains per teaspoon × 0.000979591836735
For a page dedicated to this direction, see Grain per Teaspoon to Stone per Pint.
Understanding the Stone per Pint (st/pt)
Mass per volume density.
Understanding the Grain per Teaspoon (gr/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per teaspoon are in 1 stone per pint?
1 stone per pint equals 1,020.833333 grains per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert stone per pint to grain per teaspoon?
Multiply the stone per pint value by 1020.833333. The converter above does this instantly to whatever precision you set.
How do I convert grain per teaspoon back to stone per pint?
Use the reverse factor: 1 grain per teaspoon equals 0.0009795918 stones per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per pint?
Stone per Pint (st/pt) is a unit of density.
What is a grain per teaspoon?
Grain per Teaspoon (gr/tsp) is a unit of density.
Is the stone per pint to grain per teaspoon conversion exact?
Yes. Both stone per pint and grain per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 1020.833333 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.