Mass per volume density.
Carats per Tablespoon to Stones per Quart Converter — ct/tbsp to st/qt
Convert Carat per Tablespoon (ct/tbsp) to Stone per Quart (st/qt) using the exact conversion factor (1 carat per tablespoon = 0.002015655 stone per quart). See the formula, worked examples, and conversion table.
Carats per Tablespoon 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 13.52560908 / 6710.27993.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Tablespoon to Stones per Quart
Carat per Tablespoon 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 = carats per tablespoon × 0.00201565496855
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per tablespoon equals 13.5256090807 base units, and 1 stone per quart equals 6710.27992975 base units, so dividing one by the other gives the direct carat per tablespoon-to-stone per quart factor of 0.00201565496855.
Simple example
1 ct/tbsp × 0.002015654969 = 0.002015655 st/qt
1 carat per tablespoon = 0.002015655 stones per quart.
Real-world example
1,000 ct/tbsp × 0.002015654969 = 2.015654969 st/qt
1,000 carats per tablespoon = 2.015654969 stones per quart.
Conversion table
| Carat per Tablespoon (ct/tbsp) | Stone per Quart (st/qt) |
|---|---|
| 0.1 ct/tbsp | 0.0002015655 st/qt |
| 1 ct/tbsp | 0.002015655 st/qt |
| 10 ct/tbsp | 0.0201565497 st/qt |
| 100 ct/tbsp | 0.2015654969 st/qt |
| 1,000 ct/tbsp | 2.015654969 st/qt |
| 10,000 ct/tbsp | 20.15654969 st/qt |
Reverse conversion: Stone per Quart to Carat per Tablespoon
0.002015655 st/qt × 496.1166547 = 1.000000016 ct/tbsp
0.002015655 stones per quart = 1.000000016 carats per tablespoon.
carats per tablespoon = stones per quart × 496.116654687
For a page dedicated to this direction, see Stone per Quart to Carat per Tablespoon.
Understanding the Carat per Tablespoon (ct/tbsp)
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 tablespoon?
1 carat per tablespoon equals 0.002015655 stones per quart, using the exact defined conversion factor rather than an estimate.
How do I convert carat per tablespoon to stone per quart?
Multiply the carat per tablespoon value by 0.002015654969. The converter above does this instantly to whatever precision you set.
How do I convert stone per quart back to carat per tablespoon?
Use the reverse factor: 1 stone per quart equals 496.1166547 carats per tablespoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per tablespoon?
Carat per Tablespoon (ct/tbsp) 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 tablespoon to stone per quart conversion exact?
Yes. Both carat per tablespoon and stone per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.002015654969 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.