Mass per volume density.
Grain per Cubic inches to Stones per Gallon Converter — gr/in3 to st/gal
Convert Grain per Cubic inch (gr/in3) to Stone per Gallon (st/gal) using the exact conversion factor (1 grain per cubic inch = 0.0023571429 stone per gallon). See the formula, worked examples, and conversion table.
Grain per Cubic inches to Stones per Gallon 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 3.954272101 / 1677.569982.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grain per Cubic inches to Stones per Gallon
Grain per Cubic inch and Stone per Gallon 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 gallon = grain per cubic inches × 0.00235714285714
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cubic inch equals 3.95427210146 base units, and 1 stone per gallon equals 1677.56998244 base units, so dividing one by the other gives the direct grain per cubic inch-to-stone per gallon factor of 0.00235714285714.
Simple example
1 gr/in3 × 0.002357142857 = 0.0023571429 st/gal
1 grain per cubic inch = 0.0023571429 stones per gallon.
Real-world example
1,000 gr/in3 × 0.002357142857 = 2.357142857 st/gal
1,000 grain per cubic inches = 2.357142857 stones per gallon.
Conversion table
| Grain per Cubic inch (gr/in3) | Stone per Gallon (st/gal) |
|---|---|
| 0.1 gr/in3 | 0.0002357143 st/gal |
| 1 gr/in3 | 0.0023571429 st/gal |
| 10 gr/in3 | 0.0235714286 st/gal |
| 100 gr/in3 | 0.2357142857 st/gal |
| 1,000 gr/in3 | 2.357142857 st/gal |
| 10,000 gr/in3 | 23.57142857 st/gal |
Reverse conversion: Stone per Gallon to Grain per Cubic inch
0.0023571429 st/gal × 424.2424242 = 1.000000018 gr/in3
0.0023571429 stones per gallon = 1.000000018 grain per cubic inches.
grain per cubic inches = stones per gallon × 424.242424242
For a page dedicated to this direction, see Stone per Gallon to Grain per Cubic inch.
Understanding the Grain per Cubic inch (gr/in3)
Mass per volume density.
Understanding the Stone per Gallon (st/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per gallon are in 1 grain per cubic inch?
1 grain per cubic inch equals 0.0023571429 stones per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic inch to stone per gallon?
Multiply the grain per cubic inch value by 0.002357142857. The converter above does this instantly to whatever precision you set.
How do I convert stone per gallon back to grain per cubic inch?
Use the reverse factor: 1 stone per gallon equals 424.2424242 grain per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cubic inch?
Grain per Cubic inch (gr/in3) is a unit of density.
What is a stone per gallon?
Stone per Gallon (st/gal) is a unit of density.
Is the grain per cubic inch to stone per gallon conversion exact?
Yes. Both grain per cubic inch and stone per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.002357142857 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.