Mass per volume density.
Stones per Quart to Troy ounces per Cubic Millimeter Converter — st/qt to oz t/mm3
Convert Stone per Quart (st/qt) to Troy ounce per Cubic Millimeter (oz t/mm3) using the exact conversion factor (1 stone per quart = 0.0002157405 troy ounce per cubic millimeter). See the formula, worked examples, and conversion table.
Stones per Quart to Troy ounces 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 / 3.11034768e+7.
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 Troy ounces per Cubic Millimeter
Stone per Quart and Troy ounce 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
troy ounces per cubic millimeter = stones per quart × 0.000215740509426
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 troy ounce per cubic millimeter equals 31103476.8 base units, so dividing one by the other gives the direct stone per quart-to-troy ounce per cubic millimeter factor of 0.000215740509426.
Simple example
1 st/qt × 0.0002157405094 = 0.0002157405 oz t/mm3
1 stone per quart = 0.0002157405 troy ounces per cubic millimeter.
Real-world example
1,000 st/qt × 0.0002157405094 = 0.2157405094 oz t/mm3
1,000 stones per quart = 0.2157405094 troy ounces per cubic millimeter.
Conversion table
| Stone per Quart (st/qt) | Troy ounce per Cubic Millimeter (oz t/mm3) |
|---|---|
| 0.1 st/qt | 0.0000215741 oz t/mm3 |
| 1 st/qt | 0.0002157405 oz t/mm3 |
| 10 st/qt | 0.0021574051 oz t/mm3 |
| 100 st/qt | 0.0215740509 oz t/mm3 |
| 1,000 st/qt | 0.2157405094 oz t/mm3 |
| 10,000 st/qt | 2.157405094 oz t/mm3 |
Reverse conversion: Troy ounce per Cubic Millimeter to Stone per Quart
0.0002157405 oz t/mm3 × 4635.198103 = 0.9999999563 st/qt
0.0002157405 troy ounces per cubic millimeter = 0.9999999563 stones per quart.
stones per quart = troy ounces per cubic millimeter × 4635.19810286
For a page dedicated to this direction, see Troy ounce per Cubic Millimeter to Stone per Quart.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Understanding the Troy ounce per Cubic Millimeter (oz t/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many troy ounces per cubic millimeter are in 1 stone per quart?
1 stone per quart equals 0.0002157405 troy ounces per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert stone per quart to troy ounce per cubic millimeter?
Multiply the stone per quart value by 0.0002157405094. The converter above does this instantly to whatever precision you set.
How do I convert troy ounce per cubic millimeter back to stone per quart?
Use the reverse factor: 1 troy ounce per cubic millimeter equals 4,635.198103 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 troy ounce per cubic millimeter?
Troy ounce per Cubic Millimeter (oz t/mm3) is a unit of density.
Is the stone per quart to troy ounce per cubic millimeter conversion exact?
Yes. Both stone per quart and troy ounce per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.0002157405094 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.