Mass per volume density.
Stones per Gallon to Grains per Teaspoon Converter — st/gal to gr/tsp
Convert Stone per Gallon (st/gal) to Grain per Teaspoon (gr/tsp) using the exact conversion factor (1 stone per gallon = 127.6041667 grain per teaspoon). See the formula, worked examples, and conversion table.
Stones per Gallon 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 1677.569982 / 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 Gallon to Grains per Teaspoon
Stone per Gallon 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 gallon × 127.604166667
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per gallon equals 1677.56998244 base units, and 1 grain per teaspoon equals 13.1466708828 base units, so dividing one by the other gives the direct stone per gallon-to-grain per teaspoon factor of 127.604166667.
Simple example
1 st/gal × 127.6041667 = 127.6041667 gr/tsp
1 stone per gallon = 127.6041667 grains per teaspoon.
Real-world example
1,000 st/gal × 127.6041667 = 127,604.1667 gr/tsp
1,000 stones per gallon = 127,604.1667 grains per teaspoon.
Conversion table
| Stone per Gallon (st/gal) | Grain per Teaspoon (gr/tsp) |
|---|---|
| 0.1 st/gal | 12.76041667 gr/tsp |
| 1 st/gal | 127.6041667 gr/tsp |
| 10 st/gal | 1,276.041667 gr/tsp |
| 100 st/gal | 12,760.41667 gr/tsp |
| 1,000 st/gal | 127,604.1667 gr/tsp |
| 10,000 st/gal | 1,276,041.667 gr/tsp |
Reverse conversion: Grain per Teaspoon to Stone per Gallon
127.6041667 gr/tsp × 0.007836734694 = 1 st/gal
127.6041667 grains per teaspoon = 1 stones per gallon.
stones per gallon = grains per teaspoon × 0.00783673469388
For a page dedicated to this direction, see Grain per Teaspoon to Stone per Gallon.
Understanding the Stone per Gallon (st/gal)
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 gallon?
1 stone per gallon equals 127.6041667 grains per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert stone per gallon to grain per teaspoon?
Multiply the stone per gallon value by 127.6041667. The converter above does this instantly to whatever precision you set.
How do I convert grain per teaspoon back to stone per gallon?
Use the reverse factor: 1 grain per teaspoon equals 0.0078367347 stones per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per gallon?
Stone per Gallon (st/gal) 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 gallon to grain per teaspoon conversion exact?
Yes. Both stone per gallon and grain per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 127.6041667 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.