Mass per volume density.
Pounds per Quart to Slugs per Quart Converter — lb/qt to slug/qt
Convert Pound per Quart (lb/qt) to Slug per Quart (slug/qt) using the exact conversion factor (1 pound per quart = 0.0310809502 slug per quart). See the formula, worked examples, and conversion table.
Pounds per Quart to Slugs per Quart 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 / 15421.20516.
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 Quart
Pound per Quart and Slug per Quart 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 quart = pounds per quart × 0.0310809501716
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 quart equals 15421.2051633 base units, so dividing one by the other gives the direct pound per quart-to-slug per quart factor of 0.0310809501716.
Simple example
1 lb/qt × 0.03108095017 = 0.0310809502 slug/qt
1 pound per quart = 0.0310809502 slugs per quart.
Real-world example
1,000 lb/qt × 0.03108095017 = 31.08095017 slug/qt
1,000 pounds per quart = 31.08095017 slugs per quart.
Conversion table
| Pound per Quart (lb/qt) | Slug per Quart (slug/qt) |
|---|---|
| 0.1 lb/qt | 0.003108095 slug/qt |
| 1 lb/qt | 0.0310809502 slug/qt |
| 10 lb/qt | 0.3108095017 slug/qt |
| 100 lb/qt | 3.108095017 slug/qt |
| 1,000 lb/qt | 31.08095017 slug/qt |
| 10,000 lb/qt | 310.8095017 slug/qt |
Reverse conversion: Slug per Quart to Pound per Quart
0.0310809502 slug/qt × 32.17404856 = 1.000000001 lb/qt
0.0310809502 slugs per quart = 1.000000001 pounds per quart.
pounds per quart = slugs per quart × 32.1740485564
For a page dedicated to this direction, see Slug per Quart to Pound per Quart.
Understanding the Pound per Quart (lb/qt)
Mass per volume density.
Understanding the Slug per Quart (slug/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per quart are in 1 pound per quart?
1 pound per quart equals 0.0310809502 slugs per quart, using the exact defined conversion factor rather than an estimate.
How do I convert pound per quart to slug per quart?
Multiply the pound per quart value by 0.03108095017. The converter above does this instantly to whatever precision you set.
How do I convert slug per quart back to pound per quart?
Use the reverse factor: 1 slug per quart equals 32.17404856 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 quart?
Slug per Quart (slug/qt) is a unit of density.
Is the pound per quart to slug per quart conversion exact?
Yes. Both pound per quart and slug per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.03108095017 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.