Mass per volume density.
Carat per Cubic inches to Stones per Quart Converter — ct/in3 to st/qt
Convert Carat per Cubic inch (ct/in3) to Stone per Quart (st/qt) using the exact conversion factor (1 carat per cubic inch = 0.0018188137 stone per quart). See the formula, worked examples, and conversion table.
Carat per Cubic inches 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 12.20474882 / 6710.27993.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carat per Cubic inches to Stones per Quart
Carat per Cubic inch 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 = carat per cubic inches × 0.00181881366303
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per cubic inch equals 12.2047488189 base units, and 1 stone per quart equals 6710.27992975 base units, so dividing one by the other gives the direct carat per cubic inch-to-stone per quart factor of 0.00181881366303.
Simple example
1 ct/in3 × 0.001818813663 = 0.0018188137 st/qt
1 carat per cubic inch = 0.0018188137 stones per quart.
Real-world example
1,000 ct/in3 × 0.001818813663 = 1.818813663 st/qt
1,000 carat per cubic inches = 1.818813663 stones per quart.
Conversion table
| Carat per Cubic inch (ct/in3) | Stone per Quart (st/qt) |
|---|---|
| 0.1 ct/in3 | 0.0001818814 st/qt |
| 1 ct/in3 | 0.0018188137 st/qt |
| 10 ct/in3 | 0.0181881366 st/qt |
| 100 ct/in3 | 0.1818813663 st/qt |
| 1,000 ct/in3 | 1.818813663 st/qt |
| 10,000 ct/in3 | 18.18813663 st/qt |
Reverse conversion: Stone per Quart to Carat per Cubic inch
0.0018188137 st/qt × 549.8089333 = 1.00000002 ct/in3
0.0018188137 stones per quart = 1.00000002 carat per cubic inches.
carat per cubic inches = stones per quart × 549.808933333
For a page dedicated to this direction, see Stone per Quart to Carat per Cubic inch.
Understanding the Carat per Cubic inch (ct/in3)
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 carat per cubic inch?
1 carat per cubic inch equals 0.0018188137 stones per quart, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic inch to stone per quart?
Multiply the carat per cubic inch value by 0.001818813663. The converter above does this instantly to whatever precision you set.
How do I convert stone per quart back to carat per cubic inch?
Use the reverse factor: 1 stone per quart equals 549.8089333 carat per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per cubic inch?
Carat per Cubic inch (ct/in3) is a unit of density.
What is a stone per quart?
Stone per Quart (st/qt) is a unit of density.
Is the carat per cubic inch to stone per quart conversion exact?
Yes. Both carat per cubic inch and stone per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.001818813663 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.