Mass per volume density.
Carat per Cubic inches to Stones per Teaspoon Converter — ct/in3 to st/tsp
Convert Carat per Cubic inch (ct/in3) to Stone per Teaspoon (st/tsp) using the exact conversion factor (1 carat per cubic inch = 0.000009473 stone per teaspoon). See the formula, worked examples, and conversion table.
Carat per Cubic inches to Stones 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 12.20474882 / 1.28837375e+6.
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 Teaspoon
Carat per Cubic inch and Stone 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
stones per teaspoon = carat per cubic inches × 0.00000947298782826
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 teaspoon equals 1288373.74651 base units, so dividing one by the other gives the direct carat per cubic inch-to-stone per teaspoon factor of 0.00000947298782826.
Simple example
1 ct/in3 × 0.000009472987828 = 0.000009473 st/tsp
1 carat per cubic inch = 0.000009473 stones per teaspoon.
Real-world example
1,000 ct/in3 × 0.000009472987828 = 0.0094729878 st/tsp
1,000 carat per cubic inches = 0.0094729878 stones per teaspoon.
Conversion table
| Carat per Cubic inch (ct/in3) | Stone per Teaspoon (st/tsp) |
|---|---|
| 0.1 ct/in3 | 9.472988e-7 st/tsp |
| 1 ct/in3 | 0.000009473 st/tsp |
| 10 ct/in3 | 0.0000947299 st/tsp |
| 100 ct/in3 | 0.0009472988 st/tsp |
| 1,000 ct/in3 | 0.0094729878 st/tsp |
| 10,000 ct/in3 | 0.0947298783 st/tsp |
Reverse conversion: Stone per Teaspoon to Carat per Cubic inch
0.000009473 st/tsp × 105563.3152 = 1.000001285 ct/in3
0.000009473 stones per teaspoon = 1.000001285 carat per cubic inches.
carat per cubic inches = stones per teaspoon × 105563.3152
For a page dedicated to this direction, see Stone per Teaspoon to Carat per Cubic inch.
Understanding the Carat per Cubic inch (ct/in3)
Mass per volume density.
Understanding the Stone per Teaspoon (st/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per teaspoon are in 1 carat per cubic inch?
1 carat per cubic inch equals 0.000009473 stones per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic inch to stone per teaspoon?
Multiply the carat per cubic inch value by 0.000009472987828. The converter above does this instantly to whatever precision you set.
How do I convert stone per teaspoon back to carat per cubic inch?
Use the reverse factor: 1 stone per teaspoon equals 105,563.3152 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 teaspoon?
Stone per Teaspoon (st/tsp) is a unit of density.
Is the carat per cubic inch to stone per teaspoon conversion exact?
Yes. Both carat per cubic inch and stone per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.000009472987828 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.