Mass per volume density.
Stones per Pint to Slugs per Quart Converter — st/pt to slug/qt
Convert Stone per Pint (st/pt) to Slug per Quart (slug/qt) using the exact conversion factor (1 stone per pint = 0.8702666048 slug per quart). See the formula, worked examples, and conversion table.
Stones per Pint 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 13420.55986 / 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 Pint to Slugs per Quart
Stone per Pint 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 pint × 0.870266604804
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per pint equals 13420.5598595 base units, and 1 slug per quart equals 15421.2051633 base units, so dividing one by the other gives the direct stone per pint-to-slug per quart factor of 0.870266604804.
Simple example
1 st/pt × 0.8702666048 = 0.8702666048 slug/qt
1 stone per pint = 0.8702666048 slugs per quart.
Real-world example
1,000 st/pt × 0.8702666048 = 870.2666048 slug/qt
1,000 stones per pint = 870.2666048 slugs per quart.
Conversion table
| Stone per Pint (st/pt) | Slug per Quart (slug/qt) |
|---|---|
| 0.1 st/pt | 0.0870266605 slug/qt |
| 1 st/pt | 0.8702666048 slug/qt |
| 10 st/pt | 8.702666048 slug/qt |
| 100 st/pt | 87.02666048 slug/qt |
| 1,000 st/pt | 870.2666048 slug/qt |
| 10,000 st/pt | 8,702.666048 slug/qt |
Reverse conversion: Slug per Quart to Stone per Pint
0.8702666048 slug/qt × 1.149073163 = 1 st/pt
0.8702666048 slugs per quart = 1 stones per pint.
stones per pint = slugs per quart × 1.14907316273
For a page dedicated to this direction, see Slug per Quart to Stone per Pint.
Understanding the Stone per Pint (st/pt)
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 pint?
1 stone per pint equals 0.8702666048 slugs per quart, using the exact defined conversion factor rather than an estimate.
How do I convert stone per pint to slug per quart?
Multiply the stone per pint value by 0.8702666048. The converter above does this instantly to whatever precision you set.
How do I convert slug per quart back to stone per pint?
Use the reverse factor: 1 slug per quart equals 1.149073163 stones per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per pint?
Stone per Pint (st/pt) 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 pint to slug per quart conversion exact?
Yes. Both stone per pint and slug per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.8702666048 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.