Mass per volume density.
Pounds per Cubic yard to Stones per Quart Converter — lb/yd3 to st/qt
Convert Pound per Cubic yard (lb/yd3) to Stone per Quart (st/qt) using the exact conversion factor (1 pound per cubic yard = 0.0000884131 stone per quart). See the formula, worked examples, and conversion table.
Pounds per Cubic yard 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 0.5932764213 / 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 Cubic yard to Stones per Quart
Pound per Cubic yard 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 cubic yard × 0.0000884130658436
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cubic yard equals 0.593276421258 base units, and 1 stone per quart equals 6710.27992975 base units, so dividing one by the other gives the direct pound per cubic yard-to-stone per quart factor of 0.0000884130658436.
Simple example
1 lb/yd3 × 0.00008841306584 = 0.0000884131 st/qt
1 pound per cubic yard = 0.0000884131 stones per quart.
Real-world example
1,000 lb/yd3 × 0.00008841306584 = 0.0884130658 st/qt
1,000 pounds per cubic yard = 0.0884130658 stones per quart.
Conversion table
| Pound per Cubic yard (lb/yd3) | Stone per Quart (st/qt) |
|---|---|
| 0.1 lb/yd3 | 0.0000088413 st/qt |
| 1 lb/yd3 | 0.0000884131 st/qt |
| 10 lb/yd3 | 0.0008841307 st/qt |
| 100 lb/yd3 | 0.0088413066 st/qt |
| 1,000 lb/yd3 | 0.0884130658 st/qt |
| 10,000 lb/yd3 | 0.8841306584 st/qt |
Reverse conversion: Stone per Quart to Pound per Cubic yard
0.0000884131 st/qt × 11310.54545 = 1.000000386 lb/yd3
0.0000884131 stones per quart = 1.000000386 pounds per cubic yard.
pounds per cubic yard = stones per quart × 11310.5454545
For a page dedicated to this direction, see Stone per Quart to Pound per Cubic yard.
Understanding the Pound per Cubic yard (lb/yd3)
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 cubic yard?
1 pound per cubic yard equals 0.0000884131 stones per quart, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic yard to stone per quart?
Multiply the pound per cubic yard value by 0.00008841306584. The converter above does this instantly to whatever precision you set.
How do I convert stone per quart back to pound per cubic yard?
Use the reverse factor: 1 stone per quart equals 11,310.54545 pounds per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cubic yard?
Pound per Cubic yard (lb/yd3) 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 cubic yard to stone per quart conversion exact?
Yes. Both pound per cubic yard and stone per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.00008841306584 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.