Mass per volume density.
Stones per Quart to Slugs per Cubic yard Converter — st/qt to slug/yd3
Convert Stone per Quart (st/qt) to Slug per Cubic yard (slug/yd3) using the exact conversion factor (1 stone per quart = 351.5424997 slug per cubic yard). See the formula, worked examples, and conversion table.
Stones per Quart to Slugs 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 6710.27993 / 19.08810438.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Quart to Slugs per Cubic yard
Stone per Quart and Slug 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
slugs per cubic yard = stones per quart × 351.542499686
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per quart equals 6710.27992975 base units, and 1 slug per cubic yard equals 19.0881043849 base units, so dividing one by the other gives the direct stone per quart-to-slug per cubic yard factor of 351.542499686.
Simple example
1 st/qt × 351.5424997 = 351.5424997 slug/yd3
1 stone per quart = 351.5424997 slugs per cubic yard.
Real-world example
1,000 st/qt × 351.5424997 = 351,542.4997 slug/yd3
1,000 stones per quart = 351,542.4997 slugs per cubic yard.
Conversion table
| Stone per Quart (st/qt) | Slug per Cubic yard (slug/yd3) |
|---|---|
| 0.1 st/qt | 35.15424997 slug/yd3 |
| 1 st/qt | 351.5424997 slug/yd3 |
| 10 st/qt | 3,515.424997 slug/yd3 |
| 100 st/qt | 35,154.24997 slug/yd3 |
| 1,000 st/qt | 351,542.4997 slug/yd3 |
| 10,000 st/qt | 3,515,424.997 slug/yd3 |
Reverse conversion: Slug per Cubic yard to Stone per Quart
351.5424997 slug/yd3 × 0.002844606273 = 1 st/qt
351.5424997 slugs per cubic yard = 1 stones per quart.
stones per quart = slugs per cubic yard × 0.00284460627347
For a page dedicated to this direction, see Slug per Cubic yard to Stone per Quart.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Understanding the Slug per Cubic yard (slug/yd3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per cubic yard are in 1 stone per quart?
1 stone per quart equals 351.5424997 slugs per cubic yard, using the exact defined conversion factor rather than an estimate.
How do I convert stone per quart to slug per cubic yard?
Multiply the stone per quart value by 351.5424997. The converter above does this instantly to whatever precision you set.
How do I convert slug per cubic yard back to stone per quart?
Use the reverse factor: 1 slug per cubic yard equals 0.0028446063 stones per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per quart?
Stone per Quart (st/qt) is a unit of density.
What is a slug per cubic yard?
Slug per Cubic yard (slug/yd3) is a unit of density.
Is the stone per quart to slug per cubic yard conversion exact?
Yes. Both stone per quart and slug per cubic yard are defined by fixed standards rather than physical artifacts, so the factor of 351.5424997 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.