Mass per volume density.
Stones per Quart to Kilograms per Cubic Millimeter Converter — st/qt to kg/mm3
Convert Stone per Quart (st/qt) to Kilogram per Cubic Millimeter (kg/mm3) using the exact conversion factor (1 stone per quart = 0.0000067103 kilogram per cubic millimeter). See the formula, worked examples, and conversion table.
Stones per Quart to Kilograms per Cubic Millimeter 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 / 1e+9.
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 Kilograms per Cubic Millimeter
Stone per Quart and Kilogram per Cubic Millimeter 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 cubic millimeter = stones per quart × 0.00000671027992975
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 kilogram per cubic millimeter equals 1000000000 base units, so dividing one by the other gives the direct stone per quart-to-kilogram per cubic millimeter factor of 0.00000671027992975.
Simple example
1 st/qt × 0.00000671027993 = 0.0000067103 kg/mm3
1 stone per quart = 0.0000067103 kilograms per cubic millimeter.
Real-world example
1,000 st/qt × 0.00000671027993 = 0.0067102799 kg/mm3
1,000 stones per quart = 0.0067102799 kilograms per cubic millimeter.
Conversion table
| Stone per Quart (st/qt) | Kilogram per Cubic Millimeter (kg/mm3) |
|---|---|
| 0.1 st/qt | 6.71028e-7 kg/mm3 |
| 1 st/qt | 0.0000067103 kg/mm3 |
| 10 st/qt | 0.0000671028 kg/mm3 |
| 100 st/qt | 0.000671028 kg/mm3 |
| 1,000 st/qt | 0.0067102799 kg/mm3 |
| 10,000 st/qt | 0.0671027993 kg/mm3 |
Reverse conversion: Kilogram per Cubic Millimeter to Stone per Quart
0.0000067103 kg/mm3 × 149025.0795 = 1.000002991 st/qt
0.0000067103 kilograms per cubic millimeter = 1.000002991 stones per quart.
stones per quart = kilograms per cubic millimeter × 149025.0795
For a page dedicated to this direction, see Kilogram per Cubic Millimeter to Stone per Quart.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Understanding the Kilogram per Cubic Millimeter (kg/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per cubic millimeter are in 1 stone per quart?
1 stone per quart equals 0.0000067103 kilograms per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert stone per quart to kilogram per cubic millimeter?
Multiply the stone per quart value by 0.00000671027993. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic millimeter back to stone per quart?
Use the reverse factor: 1 kilogram per cubic millimeter equals 149,025.0795 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 kilogram per cubic millimeter?
Kilogram per Cubic Millimeter (kg/mm3) is a unit of density.
Is the stone per quart to kilogram per cubic millimeter conversion exact?
Yes. Both stone per quart and kilogram per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.00000671027993 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.