Mass per volume density.
Stones per Cubic foot to Carats per Quart Converter — st/ft3 to ct/qt
Convert Stone per Cubic foot (st/ft3) to Carat per Quart (ct/qt) using the exact conversion factor (1 stone per cubic foot = 1,061.1384 carat per quart). See the formula, worked examples, and conversion table.
Stones per Cubic foot to Carats 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 224.2584872 / 0.2113376419.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cubic foot to Carats per Quart
Stone per Cubic foot and Carat 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
carats per quart = stones per cubic foot × 1061.1384003
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cubic foot equals 224.258487235 base units, and 1 carat per quart equals 0.211337641887 base units, so dividing one by the other gives the direct stone per cubic foot-to-carat per quart factor of 1061.1384003.
Simple example
1 st/ft3 × 1061.1384 = 1,061.1384 ct/qt
1 stone per cubic foot = 1,061.1384 carats per quart.
Real-world example
1,000 st/ft3 × 1061.1384 = 1,061,138.4 ct/qt
1,000 stones per cubic foot = 1,061,138.4 carats per quart.
Conversion table
| Stone per Cubic foot (st/ft3) | Carat per Quart (ct/qt) |
|---|---|
| 0.1 st/ft3 | 106.11384 ct/qt |
| 1 st/ft3 | 1,061.1384 ct/qt |
| 10 st/ft3 | 10,611.384 ct/qt |
| 100 st/ft3 | 106,113.84 ct/qt |
| 1,000 st/ft3 | 1,061,138.4 ct/qt |
| 10,000 st/ft3 | 10,611,384 ct/qt |
Reverse conversion: Carat per Quart to Stone per Cubic foot
1 ct/qt × 0.0009423841411 = 0.0009423841 st/ft3
1 carat per quart = 0.0009423841 stones per cubic foot.
stones per cubic foot = carats per quart × 0.000942384141139
For a page dedicated to this direction, see Carat per Quart to Stone per Cubic foot.
Understanding the Stone per Cubic foot (st/ft3)
Mass per volume density.
Understanding the Carat per Quart (ct/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per quart are in 1 stone per cubic foot?
1 stone per cubic foot equals 1,061.1384 carats per quart, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cubic foot to carat per quart?
Multiply the stone per cubic foot value by 1061.1384. The converter above does this instantly to whatever precision you set.
How do I convert carat per quart back to stone per cubic foot?
Use the reverse factor: 1 carat per quart equals 0.0009423841 stones per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cubic foot?
Stone per Cubic foot (st/ft3) is a unit of density.
What is a carat per quart?
Carat per Quart (ct/qt) is a unit of density.
Is the stone per cubic foot to carat per quart conversion exact?
Yes. Both stone per cubic foot and carat per quart are defined by fixed standards rather than physical artifacts, so the factor of 1061.1384 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.