Mass per volume density.
Pounds per Cup to Slugs per Quart Converter — lb/cup to slug/qt
Convert Pound per Cup (lb/cup) to Slug per Quart (slug/qt) using the exact conversion factor (1 pound per cup = 0.1243238007 slug per quart). See the formula, worked examples, and conversion table.
Pounds per Cup 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 1917.222837 / 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 Cup to Slugs per Quart
Pound per Cup 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 cup × 0.124323800686
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cup equals 1917.22283707 base units, and 1 slug per quart equals 15421.2051633 base units, so dividing one by the other gives the direct pound per cup-to-slug per quart factor of 0.124323800686.
Simple example
1 lb/cup × 0.1243238007 = 0.1243238007 slug/qt
1 pound per cup = 0.1243238007 slugs per quart.
Real-world example
1,000 lb/cup × 0.1243238007 = 124.3238007 slug/qt
1,000 pounds per cup = 124.3238007 slugs per quart.
Conversion table
| Pound per Cup (lb/cup) | Slug per Quart (slug/qt) |
|---|---|
| 0.1 lb/cup | 0.0124323801 slug/qt |
| 1 lb/cup | 0.1243238007 slug/qt |
| 10 lb/cup | 1.243238007 slug/qt |
| 100 lb/cup | 12.43238007 slug/qt |
| 1,000 lb/cup | 124.3238007 slug/qt |
| 10,000 lb/cup | 1,243.238007 slug/qt |
Reverse conversion: Slug per Quart to Pound per Cup
0.1243238007 slug/qt × 8.043512139 = 1 lb/cup
0.1243238007 slugs per quart = 1 pounds per cup.
pounds per cup = slugs per quart × 8.0435121391
For a page dedicated to this direction, see Slug per Quart to Pound per Cup.
Understanding the Pound per Cup (lb/cup)
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 cup?
1 pound per cup equals 0.1243238007 slugs per quart, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cup to slug per quart?
Multiply the pound per cup value by 0.1243238007. The converter above does this instantly to whatever precision you set.
How do I convert slug per quart back to pound per cup?
Use the reverse factor: 1 slug per quart equals 8.043512139 pounds per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cup?
Pound per Cup (lb/cup) 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 cup to slug per quart conversion exact?
Yes. Both pound per cup and slug per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.1243238007 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.