Mass per volume density.
Slugs per Quart to Pounds per Cup Converter — slug/qt to lb/cup
Convert Slug per Quart (slug/qt) to Pound per Cup (lb/cup) using the exact conversion factor (1 slug per quart = 8.043512139 pound per cup). See the formula, worked examples, and conversion table.
Slugs per Quart to Pounds per Cup 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 15421.20516 / 1917.222837.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs per Quart to Pounds per Cup
Slug per Quart and Pound per Cup 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
pounds per cup = slugs per quart × 8.0435121391
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per quart equals 15421.2051633 base units, and 1 pound per cup equals 1917.22283707 base units, so dividing one by the other gives the direct slug per quart-to-pound per cup factor of 8.0435121391.
Simple example
1 slug/qt × 8.043512139 = 8.043512139 lb/cup
1 slug per quart = 8.043512139 pounds per cup.
Real-world example
1,000 slug/qt × 8.043512139 = 8,043.512139 lb/cup
1,000 slugs per quart = 8,043.512139 pounds per cup.
Conversion table
| Slug per Quart (slug/qt) | Pound per Cup (lb/cup) |
|---|---|
| 0.1 slug/qt | 0.8043512139 lb/cup |
| 1 slug/qt | 8.043512139 lb/cup |
| 10 slug/qt | 80.43512139 lb/cup |
| 100 slug/qt | 804.3512139 lb/cup |
| 1,000 slug/qt | 8,043.512139 lb/cup |
| 10,000 slug/qt | 80,435.12139 lb/cup |
Reverse conversion: Pound per Cup to Slug per Quart
8.043512139 lb/cup × 0.1243238007 = 1 slug/qt
8.043512139 pounds per cup = 1 slugs per quart.
slugs per quart = pounds per cup × 0.124323800686
For a page dedicated to this direction, see Pound per Cup to Slug per Quart.
Understanding the Slug per Quart (slug/qt)
Mass per volume density.
Understanding the Pound per Cup (lb/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cup are in 1 slug per quart?
1 slug per quart equals 8.043512139 pounds per cup, using the exact defined conversion factor rather than an estimate.
How do I convert slug per quart to pound per cup?
Multiply the slug per quart value by 8.043512139. The converter above does this instantly to whatever precision you set.
How do I convert pound per cup back to slug per quart?
Use the reverse factor: 1 pound per cup equals 0.1243238007 slugs per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per quart?
Slug per Quart (slug/qt) is a unit of density.
What is a pound per cup?
Pound per Cup (lb/cup) is a unit of density.
Is the slug per quart to pound per cup conversion exact?
Yes. Both slug per quart and pound per cup are defined by fixed standards rather than physical artifacts, so the factor of 8.043512139 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.