Mass per volume density.
Pounds per Quart to Slugs per Cubic Millimeter Converter — lb/qt to slug/mm3
Convert Pound per Quart (lb/qt) to Slug per Cubic Millimeter (slug/mm3) using the exact conversion factor (1 pound per quart = 3.284287e-8 slug per cubic millimeter). See the formula, worked examples, and conversion table.
Pounds per Quart 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 479.3057093 / 1.45939029e+10.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Quart to Slugs per Cubic Millimeter
Pound per Quart 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 = pounds per quart × 3.284287e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per quart equals 479.305709268 base units, and 1 slug per cubic millimeter equals 14593902937.2 base units, so dividing one by the other gives the direct pound per quart-to-slug per cubic millimeter factor of 3.284287e-8.
Simple example
1 lb/qt × 3.284287e-8 = 3.284287e-8 slug/mm3
1 pound per quart = 3.284287e-8 slugs per cubic millimeter.
Real-world example
1,000 lb/qt × 3.284287e-8 = 0.0000328429 slug/mm3
1,000 pounds per quart = 0.0000328429 slugs per cubic millimeter.
Conversion table
| Pound per Quart (lb/qt) | Slug per Cubic Millimeter (slug/mm3) |
|---|---|
| 0.1 lb/qt | 3.284287e-9 slug/mm3 |
| 1 lb/qt | 3.284287e-8 slug/mm3 |
| 10 lb/qt | 3.284287e-7 slug/mm3 |
| 100 lb/qt | 0.0000032843 slug/mm3 |
| 1,000 lb/qt | 0.0000328429 slug/mm3 |
| 10,000 lb/qt | 0.0003284287 slug/mm3 |
Reverse conversion: Slug per Cubic Millimeter to Pound per Quart
3.284287e-8 slug/mm3 × 30448005.64 = 0.9999998909 lb/qt
3.284287e-8 slugs per cubic millimeter = 0.9999998909 pounds per quart.
pounds per quart = slugs per cubic millimeter × 30448005.6361
For a page dedicated to this direction, see Slug per Cubic Millimeter to Pound per Quart.
Understanding the Pound per Quart (lb/qt)
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 pound per quart?
1 pound per quart equals 3.284287e-8 slugs per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per quart to slug per cubic millimeter?
Multiply the pound per quart value by 3.284287e-8. The converter above does this instantly to whatever precision you set.
How do I convert slug per cubic millimeter back to pound per quart?
Use the reverse factor: 1 slug per cubic millimeter equals 30,448,005.64 pounds per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per quart?
Pound per Quart (lb/qt) 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 pound per quart to slug per cubic millimeter conversion exact?
Yes. Both pound per quart and slug per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 3.284287e-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.