Mass per volume density.
Stones per Imperial gallon to Slugs per Quart Converter — st/imp gal to slug/qt
Convert Stone per Imperial gallon (st/imp gal) to Slug per Quart (slug/qt) using the exact conversion factor (1 stone per imperial gallon = 0.090581067 slug per quart). See the formula, worked examples, and conversion table.
Stones per Imperial gallon 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 1396.869217 / 15421.20516.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Imperial gallon to Slugs per Quart
Stone per Imperial gallon 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 = stones per imperial gallon × 0.0905810669457
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per imperial gallon equals 1396.86921728 base units, and 1 slug per quart equals 15421.2051633 base units, so dividing one by the other gives the direct stone per imperial gallon-to-slug per quart factor of 0.0905810669457.
Simple example
1 st/imp gal × 0.09058106695 = 0.090581067 slug/qt
1 stone per imperial gallon = 0.090581067 slugs per quart.
Real-world example
1,000 st/imp gal × 0.09058106695 = 90.58106695 slug/qt
1,000 stones per imperial gallon = 90.58106695 slugs per quart.
Conversion table
| Stone per Imperial gallon (st/imp gal) | Slug per Quart (slug/qt) |
|---|---|
| 0.1 st/imp gal | 0.0090581067 slug/qt |
| 1 st/imp gal | 0.090581067 slug/qt |
| 10 st/imp gal | 0.9058106695 slug/qt |
| 100 st/imp gal | 9.058106695 slug/qt |
| 1,000 st/imp gal | 90.58106695 slug/qt |
| 10,000 st/imp gal | 905.8106695 slug/qt |
Reverse conversion: Slug per Quart to Stone per Imperial gallon
0.090581067 slug/qt × 11.03983463 = 1.000000001 st/imp gal
0.090581067 slugs per quart = 1.000000001 stones per imperial gallon.
stones per imperial gallon = slugs per quart × 11.0398346334
For a page dedicated to this direction, see Slug per Quart to Stone per Imperial gallon.
Understanding the Stone per Imperial gallon (st/imp gal)
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 stone per imperial gallon?
1 stone per imperial gallon equals 0.090581067 slugs per quart, using the exact defined conversion factor rather than an estimate.
How do I convert stone per imperial gallon to slug per quart?
Multiply the stone per imperial gallon value by 0.09058106695. The converter above does this instantly to whatever precision you set.
How do I convert slug per quart back to stone per imperial gallon?
Use the reverse factor: 1 slug per quart equals 11.03983463 stones per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per imperial gallon?
Stone per Imperial gallon (st/imp gal) is a unit of density.
What is a slug per quart?
Slug per Quart (slug/qt) is a unit of density.
Is the stone per imperial gallon to slug per quart conversion exact?
Yes. Both stone per imperial gallon and slug per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.09058106695 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.