Mass per volume density.
Stones per Cubic yard to Kilograms per Quart Converter — st/yd3 to kg/qt
Convert Stone per Cubic yard (st/yd3) to Kilogram per Quart (kg/qt) using the exact conversion factor (1 stone per cubic yard = 0.0078602844 kilogram per quart). See the formula, worked examples, and conversion table.
Stones per Cubic yard to Kilograms 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 8.305869898 / 1056.688209.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cubic yard to Kilograms per Quart
Stone per Cubic yard and Kilogram 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
kilograms per quart = stones per cubic yard × 0.00786028444669
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cubic yard equals 8.30586989761 base units, and 1 kilogram per quart equals 1056.68820943 base units, so dividing one by the other gives the direct stone per cubic yard-to-kilogram per quart factor of 0.00786028444669.
Simple example
1 st/yd3 × 0.007860284447 = 0.0078602844 kg/qt
1 stone per cubic yard = 0.0078602844 kilograms per quart.
Real-world example
1,000 st/yd3 × 0.007860284447 = 7.860284447 kg/qt
1,000 stones per cubic yard = 7.860284447 kilograms per quart.
Conversion table
| Stone per Cubic yard (st/yd3) | Kilogram per Quart (kg/qt) |
|---|---|
| 0.1 st/yd3 | 0.0007860284 kg/qt |
| 1 st/yd3 | 0.0078602844 kg/qt |
| 10 st/yd3 | 0.0786028445 kg/qt |
| 100 st/yd3 | 0.7860284447 kg/qt |
| 1,000 st/yd3 | 7.860284447 kg/qt |
| 10,000 st/yd3 | 78.60284447 kg/qt |
Reverse conversion: Kilogram per Quart to Stone per Cubic yard
0.0078602844 kg/qt × 127.2218591 = 0.9999999941 st/yd3
0.0078602844 kilograms per quart = 0.9999999941 stones per cubic yard.
stones per cubic yard = kilograms per quart × 127.221859054
For a page dedicated to this direction, see Kilogram per Quart to Stone per Cubic yard.
Understanding the Stone per Cubic yard (st/yd3)
Mass per volume density.
Understanding the Kilogram per Quart (kg/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per quart are in 1 stone per cubic yard?
1 stone per cubic yard equals 0.0078602844 kilograms per quart, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cubic yard to kilogram per quart?
Multiply the stone per cubic yard value by 0.007860284447. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per quart back to stone per cubic yard?
Use the reverse factor: 1 kilogram per quart equals 127.2218591 stones per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cubic yard?
Stone per Cubic yard (st/yd3) is a unit of density.
What is a kilogram per quart?
Kilogram per Quart (kg/qt) is a unit of density.
Is the stone per cubic yard to kilogram per quart conversion exact?
Yes. Both stone per cubic yard and kilogram per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.007860284447 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.