Mass per volume density.
Slugs per Quart to Pounds per Imperial gallon Converter — slug/qt to lb/imp gal
Convert Slug per Quart (slug/qt) to Pound per Imperial gallon (lb/imp gal) using the exact conversion factor (1 slug per quart = 154.5576849 pound per imperial gallon). See the formula, worked examples, and conversion table.
Slugs per Quart to Pounds per Imperial gallon 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 / 99.77637266.
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 Imperial gallon
Slug per Quart and Pound per Imperial gallon 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 imperial gallon = slugs per quart × 154.557684868
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 imperial gallon equals 99.7763726631 base units, so dividing one by the other gives the direct slug per quart-to-pound per imperial gallon factor of 154.557684868.
Simple example
1 slug/qt × 154.5576849 = 154.5576849 lb/imp gal
1 slug per quart = 154.5576849 pounds per imperial gallon.
Real-world example
1,000 slug/qt × 154.5576849 = 154,557.6849 lb/imp gal
1,000 slugs per quart = 154,557.6849 pounds per imperial gallon.
Conversion table
| Slug per Quart (slug/qt) | Pound per Imperial gallon (lb/imp gal) |
|---|---|
| 0.1 slug/qt | 15.45576849 lb/imp gal |
| 1 slug/qt | 154.5576849 lb/imp gal |
| 10 slug/qt | 1,545.576849 lb/imp gal |
| 100 slug/qt | 15,455.76849 lb/imp gal |
| 1,000 slug/qt | 154,557.6849 lb/imp gal |
| 10,000 slug/qt | 1,545,576.849 lb/imp gal |
Reverse conversion: Pound per Imperial gallon to Slug per Quart
154.5576849 lb/imp gal × 0.00647007621 = 1 slug/qt
154.5576849 pounds per imperial gallon = 1 slugs per quart.
slugs per quart = pounds per imperial gallon × 0.0064700762104
For a page dedicated to this direction, see Pound per Imperial gallon to Slug per Quart.
Understanding the Slug per Quart (slug/qt)
Mass per volume density.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per imperial gallon are in 1 slug per quart?
1 slug per quart equals 154.5576849 pounds per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert slug per quart to pound per imperial gallon?
Multiply the slug per quart value by 154.5576849. The converter above does this instantly to whatever precision you set.
How do I convert pound per imperial gallon back to slug per quart?
Use the reverse factor: 1 pound per imperial gallon equals 0.0064700762 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 imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
Is the slug per quart to pound per imperial gallon conversion exact?
Yes. Both slug per quart and pound per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 154.5576849 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.