Mass per volume density.
Stones per Cubic foot to Slugs per Cubic Millimeter Converter — st/ft3 to slug/mm3
Convert Stone per Cubic foot (st/ft3) to Slug per Cubic Millimeter (slug/mm3) using the exact conversion factor (1 stone per cubic foot = 1.536659e-8 slug per cubic millimeter). See the formula, worked examples, and conversion table.
Stones per Cubic foot to Slugs 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 224.2584872 / 1.45939029e+10.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cubic foot to Slugs per Cubic Millimeter
Stone per Cubic foot and Slug 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
slugs per cubic millimeter = stones per cubic foot × 1.536659e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cubic foot equals 224.258487235 base units, and 1 slug per cubic millimeter equals 14593902937.2 base units, so dividing one by the other gives the direct stone per cubic foot-to-slug per cubic millimeter factor of 1.536659e-8.
Simple example
1 st/ft3 × 1.536659e-8 = 1.536659e-8 slug/mm3
1 stone per cubic foot = 1.536659e-8 slugs per cubic millimeter.
Real-world example
1,000 st/ft3 × 1.536659e-8 = 0.0000153666 slug/mm3
1,000 stones per cubic foot = 0.0000153666 slugs per cubic millimeter.
Conversion table
| Stone per Cubic foot (st/ft3) | Slug per Cubic Millimeter (slug/mm3) |
|---|---|
| 0.1 st/ft3 | 1.536659e-9 slug/mm3 |
| 1 st/ft3 | 1.536659e-8 slug/mm3 |
| 10 st/ft3 | 1.536659e-7 slug/mm3 |
| 100 st/ft3 | 0.0000015367 slug/mm3 |
| 1,000 st/ft3 | 0.0000153666 slug/mm3 |
| 10,000 st/ft3 | 0.0001536659 slug/mm3 |
Reverse conversion: Slug per Cubic Millimeter to Stone per Cubic foot
1.536659e-8 slug/mm3 × 65076256.94 = 1.000000159 st/ft3
1.536659e-8 slugs per cubic millimeter = 1.000000159 stones per cubic foot.
stones per cubic foot = slugs per cubic millimeter × 65076256.944
For a page dedicated to this direction, see Slug per Cubic Millimeter to Stone per Cubic foot.
Understanding the Stone per Cubic foot (st/ft3)
Mass per volume density.
Understanding the Slug per Cubic Millimeter (slug/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per cubic millimeter are in 1 stone per cubic foot?
1 stone per cubic foot equals 1.536659e-8 slugs per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cubic foot to slug per cubic millimeter?
Multiply the stone per cubic foot value by 1.536659e-8. The converter above does this instantly to whatever precision you set.
How do I convert slug per cubic millimeter back to stone per cubic foot?
Use the reverse factor: 1 slug per cubic millimeter equals 65,076,256.94 stones per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cubic foot?
Stone per Cubic foot (st/ft3) is a unit of density.
What is a slug per cubic millimeter?
Slug per Cubic Millimeter (slug/mm3) is a unit of density.
Is the stone per cubic foot to slug per cubic millimeter conversion exact?
Yes. Both stone per cubic foot and slug per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 1.536659e-8 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.