Mass per volume density.
Grains per Gallon to Stones per Cubic yard Converter — gr/gal to st/yd3
Convert Grain per Gallon (gr/gal) to Stone per Cubic yard (st/yd3) using the exact conversion factor (1 grain per gallon = 0.0020609594 stone per cubic yard). See the formula, worked examples, and conversion table.
Grains per Gallon to Stones per Cubic yard 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 0.01711806105 / 8.305869898.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Gallon to Stones per Cubic yard
Grain per Gallon and Stone per Cubic yard 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 cubic yard = grains per gallon × 0.00206095944871
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per gallon equals 0.0171180610453 base units, and 1 stone per cubic yard equals 8.30586989761 base units, so dividing one by the other gives the direct grain per gallon-to-stone per cubic yard factor of 0.00206095944871.
Simple example
1 gr/gal × 0.002060959449 = 0.0020609594 st/yd3
1 grain per gallon = 0.0020609594 stones per cubic yard.
Real-world example
1,000 gr/gal × 0.002060959449 = 2.060959449 st/yd3
1,000 grains per gallon = 2.060959449 stones per cubic yard.
Conversion table
| Grain per Gallon (gr/gal) | Stone per Cubic yard (st/yd3) |
|---|---|
| 0.1 gr/gal | 0.0002060959 st/yd3 |
| 1 gr/gal | 0.0020609594 st/yd3 |
| 10 gr/gal | 0.0206095945 st/yd3 |
| 100 gr/gal | 0.2060959449 st/yd3 |
| 1,000 gr/gal | 2.060959449 st/yd3 |
| 10,000 gr/gal | 20.60959449 st/yd3 |
Reverse conversion: Stone per Cubic yard to Grain per Gallon
0.0020609594 st/yd3 × 485.2109053 = 0.9999999764 gr/gal
0.0020609594 stones per cubic yard = 0.9999999764 grains per gallon.
grains per gallon = stones per cubic yard × 485.21090535
For a page dedicated to this direction, see Stone per Cubic yard to Grain per Gallon.
Understanding the Grain per Gallon (gr/gal)
Mass per volume density.
Understanding the Stone per Cubic yard (st/yd3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic yard are in 1 grain per gallon?
1 grain per gallon equals 0.0020609594 stones per cubic yard, using the exact defined conversion factor rather than an estimate.
How do I convert grain per gallon to stone per cubic yard?
Multiply the grain per gallon value by 0.002060959449. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic yard back to grain per gallon?
Use the reverse factor: 1 stone per cubic yard equals 485.2109053 grains per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
What is a stone per cubic yard?
Stone per Cubic yard (st/yd3) is a unit of density.
Is the grain per gallon to stone per cubic yard conversion exact?
Yes. Both grain per gallon and stone per cubic yard are defined by fixed standards rather than physical artifacts, so the factor of 0.002060959449 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.