Mass per volume density.
Stones per Quart to Slugs per Imperial gallon Converter — st/qt to slug/imp gal
Convert Stone per Quart (st/qt) to Slug per Imperial gallon (slug/imp gal) using the exact conversion factor (1 stone per quart = 2.090293228 slug per imperial gallon). See the formula, worked examples, and conversion table.
Stones per Quart to Slugs 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 6710.27993 / 3210.209859.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Quart to Slugs per Imperial gallon
Stone per Quart and Slug 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
slugs per imperial gallon = stones per quart × 2.09029322842
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per quart equals 6710.27992975 base units, and 1 slug per imperial gallon equals 3210.20985885 base units, so dividing one by the other gives the direct stone per quart-to-slug per imperial gallon factor of 2.09029322842.
Simple example
1 st/qt × 2.090293228 = 2.090293228 slug/imp gal
1 stone per quart = 2.090293228 slugs per imperial gallon.
Real-world example
1,000 st/qt × 2.090293228 = 2,090.293228 slug/imp gal
1,000 stones per quart = 2,090.293228 slugs per imperial gallon.
Conversion table
| Stone per Quart (st/qt) | Slug per Imperial gallon (slug/imp gal) |
|---|---|
| 0.1 st/qt | 0.2090293228 slug/imp gal |
| 1 st/qt | 2.090293228 slug/imp gal |
| 10 st/qt | 20.90293228 slug/imp gal |
| 100 st/qt | 209.0293228 slug/imp gal |
| 1,000 st/qt | 2,090.293228 slug/imp gal |
| 10,000 st/qt | 20,902.93228 slug/imp gal |
Reverse conversion: Slug per Imperial gallon to Stone per Quart
2.090293228 slug/imp gal × 0.4784017794 = 0.9999999998 st/qt
2.090293228 slugs per imperial gallon = 0.9999999998 stones per quart.
stones per quart = slugs per imperial gallon × 0.478401779427
For a page dedicated to this direction, see Slug per Imperial gallon to Stone per Quart.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Understanding the Slug per Imperial gallon (slug/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per imperial gallon are in 1 stone per quart?
1 stone per quart equals 2.090293228 slugs per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert stone per quart to slug per imperial gallon?
Multiply the stone per quart value by 2.090293228. The converter above does this instantly to whatever precision you set.
How do I convert slug per imperial gallon back to stone per quart?
Use the reverse factor: 1 slug per imperial gallon equals 0.4784017794 stones per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per quart?
Stone per Quart (st/qt) is a unit of density.
What is a slug per imperial gallon?
Slug per Imperial gallon (slug/imp gal) is a unit of density.
Is the stone per quart to slug per imperial gallon conversion exact?
Yes. Both stone per quart and slug per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 2.090293228 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.