Mass per volume density.
Carats per Teaspoon to Stones per Cubic Centimeter Converter — ct/tsp to st/cm3
Convert Carat per Teaspoon (ct/tsp) to Stone per Cubic Centimeter (st/cm3) using the exact conversion factor (1 carat per teaspoon = 0.0000063898 stone per cubic centimeter). See the formula, worked examples, and conversion table.
Carats per Teaspoon to Stones per Cubic Centimeter 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 40.57682724 / 6.35029318e+6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Teaspoon to Stones per Cubic Centimeter
Carat per Teaspoon and Stone per Cubic Centimeter 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 cubic centimeter = carats per teaspoon × 0.00000638975651864
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per teaspoon equals 40.5768272422 base units, and 1 stone per cubic centimeter equals 6350293.18 base units, so dividing one by the other gives the direct carat per teaspoon-to-stone per cubic centimeter factor of 0.00000638975651864.
Simple example
1 ct/tsp × 0.000006389756519 = 0.0000063898 st/cm3
1 carat per teaspoon = 0.0000063898 stones per cubic centimeter.
Real-world example
1,000 ct/tsp × 0.000006389756519 = 0.0063897565 st/cm3
1,000 carats per teaspoon = 0.0063897565 stones per cubic centimeter.
Conversion table
| Carat per Teaspoon (ct/tsp) | Stone per Cubic Centimeter (st/cm3) |
|---|---|
| 0.1 ct/tsp | 6.389757e-7 st/cm3 |
| 1 ct/tsp | 0.0000063898 st/cm3 |
| 10 ct/tsp | 0.0000638976 st/cm3 |
| 100 ct/tsp | 0.0006389757 st/cm3 |
| 1,000 ct/tsp | 0.0063897565 st/cm3 |
| 10,000 ct/tsp | 0.0638975652 st/cm3 |
Reverse conversion: Stone per Cubic Centimeter to Carat per Teaspoon
0.0000063898 st/cm3 × 156500.4859 = 1.000006805 ct/tsp
0.0000063898 stones per cubic centimeter = 1.000006805 carats per teaspoon.
carats per teaspoon = stones per cubic centimeter × 156500.485908
For a page dedicated to this direction, see Stone per Cubic Centimeter to Carat per Teaspoon.
Understanding the Carat per Teaspoon (ct/tsp)
Mass per volume density.
Understanding the Stone per Cubic Centimeter (st/cm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic centimeter are in 1 carat per teaspoon?
1 carat per teaspoon equals 0.0000063898 stones per cubic centimeter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per teaspoon to stone per cubic centimeter?
Multiply the carat per teaspoon value by 0.000006389756519. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic centimeter back to carat per teaspoon?
Use the reverse factor: 1 stone per cubic centimeter equals 156,500.4859 carats per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per teaspoon?
Carat per Teaspoon (ct/tsp) is a unit of density.
What is a stone per cubic centimeter?
Stone per Cubic Centimeter (st/cm3) is a unit of density.
Is the carat per teaspoon to stone per cubic centimeter conversion exact?
Yes. Both carat per teaspoon and stone per cubic centimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.000006389756519 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.