Mass per volume density.
Slugs per Cubic yard to Stones per Cubic Millimeter Converter — slug/yd3 to st/mm3
Convert Slug per Cubic yard (slug/yd3) to Stone per Cubic Millimeter (st/mm3) using the exact conversion factor (1 slug per cubic yard = 3.005862e-9 stone per cubic millimeter). See the formula, worked examples, and conversion table.
Slugs per Cubic yard to Stones per Cubic Millimeter 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 19.08810438 / 6.35029318e+9.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs per Cubic yard to Stones per Cubic Millimeter
Slug per Cubic yard and Stone per Cubic Millimeter 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 millimeter = slugs per cubic yard × 3.005862e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per cubic yard equals 19.0881043849 base units, and 1 stone per cubic millimeter equals 6350293180 base units, so dividing one by the other gives the direct slug per cubic yard-to-stone per cubic millimeter factor of 3.005862e-9.
Simple example
1 slug/yd3 × 3.005862e-9 = 3.005862e-9 st/mm3
1 slug per cubic yard = 3.005862e-9 stones per cubic millimeter.
Real-world example
1,000 slug/yd3 × 3.005862e-9 = 0.0000030059 st/mm3
1,000 slugs per cubic yard = 0.0000030059 stones per cubic millimeter.
Conversion table
| Slug per Cubic yard (slug/yd3) | Stone per Cubic Millimeter (st/mm3) |
|---|---|
| 0.1 slug/yd3 | 3.005862e-10 st/mm3 |
| 1 slug/yd3 | 3.005862e-9 st/mm3 |
| 10 slug/yd3 | 3.005862e-8 st/mm3 |
| 100 slug/yd3 | 3.005862e-7 st/mm3 |
| 1,000 slug/yd3 | 0.0000030059 st/mm3 |
| 10,000 slug/yd3 | 0.0000300586 st/mm3 |
Reverse conversion: Stone per Cubic Millimeter to Slug per Cubic yard
3.005862e-9 st/mm3 × 332683280.2 = 1.00000003 slug/yd3
3.005862e-9 stones per cubic millimeter = 1.00000003 slugs per cubic yard.
slugs per cubic yard = stones per cubic millimeter × 332683280.222
For a page dedicated to this direction, see Stone per Cubic Millimeter to Slug per Cubic yard.
Understanding the Slug per Cubic yard (slug/yd3)
Mass per volume density.
Understanding the Stone per Cubic Millimeter (st/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic millimeter are in 1 slug per cubic yard?
1 slug per cubic yard equals 3.005862e-9 stones per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert slug per cubic yard to stone per cubic millimeter?
Multiply the slug per cubic yard value by 3.005862e-9. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic millimeter back to slug per cubic yard?
Use the reverse factor: 1 stone per cubic millimeter equals 332,683,280.2 slugs per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per cubic yard?
Slug per Cubic yard (slug/yd3) is a unit of density.
What is a stone per cubic millimeter?
Stone per Cubic Millimeter (st/mm3) is a unit of density.
Is the slug per cubic yard to stone per cubic millimeter conversion exact?
Yes. Both slug per cubic yard and stone per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 3.005862e-9 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.