Mass per volume density.
Grains per Cubic foot to Stones per Cubic yard Converter — gr/ft3 to st/yd3
Convert Grain per Cubic foot (gr/ft3) to Stone per Cubic yard (st/yd3) using the exact conversion factor (1 grain per cubic foot = 0.0002755102 stone per cubic yard). See the formula, worked examples, and conversion table.
Grains per Cubic foot 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 0.002288351911 / 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 Cubic foot to Stones per Cubic yard
Grain per Cubic foot 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 cubic foot × 0.000275510204082
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cubic foot equals 0.00228835191057 base units, and 1 stone per cubic yard equals 8.30586989761 base units, so dividing one by the other gives the direct grain per cubic foot-to-stone per cubic yard factor of 0.000275510204082.
Simple example
1 gr/ft3 × 0.0002755102041 = 0.0002755102 st/yd3
1 grain per cubic foot = 0.0002755102 stones per cubic yard.
Real-world example
1,000 gr/ft3 × 0.0002755102041 = 0.2755102041 st/yd3
1,000 grains per cubic foot = 0.2755102041 stones per cubic yard.
Conversion table
| Grain per Cubic foot (gr/ft3) | Stone per Cubic yard (st/yd3) |
|---|---|
| 0.1 gr/ft3 | 0.000027551 st/yd3 |
| 1 gr/ft3 | 0.0002755102 st/yd3 |
| 10 gr/ft3 | 0.002755102 st/yd3 |
| 100 gr/ft3 | 0.0275510204 st/yd3 |
| 1,000 gr/ft3 | 0.2755102041 st/yd3 |
| 10,000 gr/ft3 | 2.755102041 st/yd3 |
Reverse conversion: Stone per Cubic yard to Grain per Cubic foot
0.0002755102 st/yd3 × 3629.62963 = 0.9999999852 gr/ft3
0.0002755102 stones per cubic yard = 0.9999999852 grains per cubic foot.
grains per cubic foot = stones per cubic yard × 3629.62962963
For a page dedicated to this direction, see Stone per Cubic yard to Grain per Cubic foot.
Understanding the Grain per Cubic foot (gr/ft3)
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 cubic foot?
1 grain per cubic foot equals 0.0002755102 stones per cubic yard, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic foot to stone per cubic yard?
Multiply the grain per cubic foot value by 0.0002755102041. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic yard back to grain per cubic foot?
Use the reverse factor: 1 stone per cubic yard equals 3,629.62963 grains per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cubic foot?
Grain per Cubic foot (gr/ft3) 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 cubic foot to stone per cubic yard conversion exact?
Yes. Both grain per cubic foot and stone per cubic yard are defined by fixed standards rather than physical artifacts, so the factor of 0.0002755102041 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.