Mass per volume density.
Pounds per Quart to Stones per Quart Converter — lb/qt to st/qt
Convert Pound per Quart (lb/qt) to Stone per Quart (st/qt) using the exact conversion factor (1 pound per quart = 0.0714285714 stone per quart). See the formula, worked examples, and conversion table.
Pounds per Quart to Stones 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 479.3057093 / 6710.27993.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Quart to Stones per Quart
Pound per Quart and Stone 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
stones per quart = pounds per quart × 0.0714285714286
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per quart equals 479.305709268 base units, and 1 stone per quart equals 6710.27992975 base units, so dividing one by the other gives the direct pound per quart-to-stone per quart factor of 0.0714285714286.
Simple example
1 lb/qt × 0.07142857143 = 0.0714285714 st/qt
1 pound per quart = 0.0714285714 stones per quart.
Real-world example
1,000 lb/qt × 0.07142857143 = 71.42857143 st/qt
1,000 pounds per quart = 71.42857143 stones per quart.
Conversion table
| Pound per Quart (lb/qt) | Stone per Quart (st/qt) |
|---|---|
| 0.1 lb/qt | 0.0071428571 st/qt |
| 1 lb/qt | 0.0714285714 st/qt |
| 10 lb/qt | 0.7142857143 st/qt |
| 100 lb/qt | 7.142857143 st/qt |
| 1,000 lb/qt | 71.42857143 st/qt |
| 10,000 lb/qt | 714.2857143 st/qt |
Reverse conversion: Stone per Quart to Pound per Quart
0.0714285714 st/qt × 14 = 0.9999999996 lb/qt
0.0714285714 stones per quart = 0.9999999996 pounds per quart.
pounds per quart = stones per quart × 14
For a page dedicated to this direction, see Stone per Quart to Pound per Quart.
Understanding the Pound per Quart (lb/qt)
Mass per volume density.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per quart are in 1 pound per quart?
1 pound per quart equals 0.0714285714 stones per quart, using the exact defined conversion factor rather than an estimate.
How do I convert pound per quart to stone per quart?
Multiply the pound per quart value by 0.07142857143. The converter above does this instantly to whatever precision you set.
How do I convert stone per quart back to pound per quart?
Use the reverse factor: 1 stone per quart equals 14 pounds per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per quart?
Pound per Quart (lb/qt) is a unit of density.
What is a stone per quart?
Stone per Quart (st/qt) is a unit of density.
Is the pound per quart to stone per quart conversion exact?
Yes. Both pound per quart and stone per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.07142857143 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.