Mass per volume density.
Carats per Teaspoon to Stones per Liter Converter — ct/tsp to st/L
Convert Carat per Teaspoon (ct/tsp) to Stone per Liter (st/L) using the exact conversion factor (1 carat per teaspoon = 0.0063897565 stone per liter). See the formula, worked examples, and conversion table.
Carats per Teaspoon to Stones per Liter 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 / 6350.29318.
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 Liter
Carat per Teaspoon and Stone per Liter 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 liter = carats per teaspoon × 0.00638975651864
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 liter equals 6350.29318 base units, so dividing one by the other gives the direct carat per teaspoon-to-stone per liter factor of 0.00638975651864.
Simple example
1 ct/tsp × 0.006389756519 = 0.0063897565 st/L
1 carat per teaspoon = 0.0063897565 stones per liter.
Real-world example
1,000 ct/tsp × 0.006389756519 = 6.389756519 st/L
1,000 carats per teaspoon = 6.389756519 stones per liter.
Conversion table
| Carat per Teaspoon (ct/tsp) | Stone per Liter (st/L) |
|---|---|
| 0.1 ct/tsp | 0.0006389757 st/L |
| 1 ct/tsp | 0.0063897565 st/L |
| 10 ct/tsp | 0.0638975652 st/L |
| 100 ct/tsp | 0.6389756519 st/L |
| 1,000 ct/tsp | 6.389756519 st/L |
| 10,000 ct/tsp | 63.89756519 st/L |
Reverse conversion: Stone per Liter to Carat per Teaspoon
0.0063897565 st/L × 156.5004859 = 0.9999999971 ct/tsp
0.0063897565 stones per liter = 0.9999999971 carats per teaspoon.
carats per teaspoon = stones per liter × 156.500485908
For a page dedicated to this direction, see Stone per Liter to Carat per Teaspoon.
Understanding the Carat per Teaspoon (ct/tsp)
Mass per volume density.
Understanding the Stone per Liter (st/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per liter are in 1 carat per teaspoon?
1 carat per teaspoon equals 0.0063897565 stones per liter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per teaspoon to stone per liter?
Multiply the carat per teaspoon value by 0.006389756519. The converter above does this instantly to whatever precision you set.
How do I convert stone per liter back to carat per teaspoon?
Use the reverse factor: 1 stone per liter equals 156.5004859 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 liter?
Stone per Liter (st/L) is a unit of density.
Is the carat per teaspoon to stone per liter conversion exact?
Yes. Both carat per teaspoon and stone per liter are defined by fixed standards rather than physical artifacts, so the factor of 0.006389756519 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.