Mass per volume density.
Carats per Liter to Stones per Cup Converter — ct/L to st/cup
Convert Carat per Liter (ct/L) to Stone per Cup (st/cup) using the exact conversion factor (1 carat per liter = 0.0000074513 stone per cup). See the formula, worked examples, and conversion table.
Carats per Liter to Stones per Cup 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 0.2 / 26841.11972.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Liter to Stones per Cup
Carat per Liter and Stone per Cup 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 cup = carats per liter × 0.00000745125397502
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per liter equals 0.2 base units, and 1 stone per cup equals 26841.119719 base units, so dividing one by the other gives the direct carat per liter-to-stone per cup factor of 0.00000745125397502.
Simple example
1 ct/L × 0.000007451253975 = 0.0000074513 st/cup
1 carat per liter = 0.0000074513 stones per cup.
Real-world example
1,000 ct/L × 0.000007451253975 = 0.007451254 st/cup
1,000 carats per liter = 0.007451254 stones per cup.
Conversion table
| Carat per Liter (ct/L) | Stone per Cup (st/cup) |
|---|---|
| 0.1 ct/L | 7.451254e-7 st/cup |
| 1 ct/L | 0.0000074513 st/cup |
| 10 ct/L | 0.0000745125 st/cup |
| 100 ct/L | 0.0007451254 st/cup |
| 1,000 ct/L | 0.007451254 st/cup |
| 10,000 ct/L | 0.0745125398 st/cup |
Reverse conversion: Stone per Cup to Carat per Liter
0.0000074513 st/cup × 134205.5986 = 1.000006177 ct/L
0.0000074513 stones per cup = 1.000006177 carats per liter.
carats per liter = stones per cup × 134205.598595
For a page dedicated to this direction, see Stone per Cup to Carat per Liter.
Understanding the Carat per Liter (ct/L)
Mass per volume density.
Understanding the Stone per Cup (st/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cup are in 1 carat per liter?
1 carat per liter equals 0.0000074513 stones per cup, using the exact defined conversion factor rather than an estimate.
How do I convert carat per liter to stone per cup?
Multiply the carat per liter value by 0.000007451253975. The converter above does this instantly to whatever precision you set.
How do I convert stone per cup back to carat per liter?
Use the reverse factor: 1 stone per cup equals 134,205.5986 carats per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per liter?
Carat per Liter (ct/L) is a unit of density.
What is a stone per cup?
Stone per Cup (st/cup) is a unit of density.
Is the carat per liter to stone per cup conversion exact?
Yes. Both carat per liter and stone per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.000007451253975 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.