Mass per volume density.
Stones per Quart to Carats per Teaspoon Converter — st/qt to ct/tsp
Convert Stone per Quart (st/qt) to Carat per Teaspoon (ct/tsp) using the exact conversion factor (1 stone per quart = 165.3722182 carat per teaspoon). See the formula, worked examples, and conversion table.
Stones per Quart to Carats per Teaspoon 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 / 40.57682724.
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 Carats per Teaspoon
Stone per Quart and Carat per Teaspoon 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 teaspoon = stones per quart × 165.372218229
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 carat per teaspoon equals 40.5768272422 base units, so dividing one by the other gives the direct stone per quart-to-carat per teaspoon factor of 165.372218229.
Simple example
1 st/qt × 165.3722182 = 165.3722182 ct/tsp
1 stone per quart = 165.3722182 carats per teaspoon.
Real-world example
1,000 st/qt × 165.3722182 = 165,372.2182 ct/tsp
1,000 stones per quart = 165,372.2182 carats per teaspoon.
Conversion table
| Stone per Quart (st/qt) | Carat per Teaspoon (ct/tsp) |
|---|---|
| 0.1 st/qt | 16.53722182 ct/tsp |
| 1 st/qt | 165.3722182 ct/tsp |
| 10 st/qt | 1,653.722182 ct/tsp |
| 100 st/qt | 16,537.22182 ct/tsp |
| 1,000 st/qt | 165,372.2182 ct/tsp |
| 10,000 st/qt | 1,653,722.182 ct/tsp |
Reverse conversion: Carat per Teaspoon to Stone per Quart
165.3722182 ct/tsp × 0.006046964906 = 0.9999999998 st/qt
165.3722182 carats per teaspoon = 0.9999999998 stones per quart.
stones per quart = carats per teaspoon × 0.00604696490564
For a page dedicated to this direction, see Carat per Teaspoon to Stone per Quart.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Understanding the Carat per Teaspoon (ct/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per teaspoon are in 1 stone per quart?
1 stone per quart equals 165.3722182 carats per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert stone per quart to carat per teaspoon?
Multiply the stone per quart value by 165.3722182. The converter above does this instantly to whatever precision you set.
How do I convert carat per teaspoon back to stone per quart?
Use the reverse factor: 1 carat per teaspoon equals 0.0060469649 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 carat per teaspoon?
Carat per Teaspoon (ct/tsp) is a unit of density.
Is the stone per quart to carat per teaspoon conversion exact?
Yes. Both stone per quart and carat per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 165.3722182 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.