Carat per Cup (ct/cup) expresses mass in carat per unit volume in cup, found by dividing a mass value by a volume value.
Carat per Cup to Stone per Milliliter
Convert carat per cup (ct/cup) to stone per milliliter (st/mL) instantly with formula, conversion table, and FAQ.
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Convert carat per cup (ct/cup) to stone per milliliter (st/mL) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Stone per Milliliter (st/mL) expresses mass in stone per unit volume in milliliter, found by dividing a mass value by a volume value.
st/mL = ct/cup × 1.331199e-7
Results update instantly for Carat per Cup to Stone per Milliliter conversions.
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Formula
st/mL = ct/cup × 1.331199e-7
ct/cup = st/mL × 7.512023e6
Conversion table
| 1 ct/cup | 1.331199e-7 st/mL |
| 5 ct/cup | 6.655996e-7 st/mL |
| 10 ct/cup | 1.331199e-6 st/mL |
| 20 ct/cup | 2.662399e-6 st/mL |
| 50 ct/cup | 6.655996e-6 st/mL |
| 100 ct/cup | 1.331199e-5 st/mL |
| 500 ct/cup | 6.655996e-5 st/mL |
| 1000 ct/cup | 0.000133 st/mL |
Related conversions
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How the formula works
Both carat per cup and stone per milliliter measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in carat per cup by 1.331199e-7 to get stone per milliliter. To reverse the conversion, multiply a stone per milliliter value by 7.512023e6 to get back to carat per cup.
Frequently asked questions
What is Carat per Cup (ct/cup)?
Carat per Cup (ct/cup) expresses mass in carat per unit volume in cup, found by dividing a mass value by a volume value.
What is Stone per Milliliter (st/mL)?
Stone per Milliliter (st/mL) expresses mass in stone per unit volume in milliliter, found by dividing a mass value by a volume value.
How do I convert carat per cup to stone per milliliter?
Multiply the carat per cup value by 1.331199e-7 to get the equivalent in stone per milliliter. For example, 5 ct/cup × 1.331199e-7 = 6.655996e-7 st/mL.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 1.331199e-7 is an exact, non-rounded value.
Can I convert stone per milliliter back to carat per cup?
Yes. Divide the stone per milliliter value by 1.331199e-7, or multiply it by 7.512023e6, to get carat per cup.
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About converting carat per cup to stone per milliliter
Carat per Cup (ct/cup) expresses mass in carat per unit volume in cup, found by dividing a mass value by a volume value. Stone per Milliliter (st/mL) expresses mass in stone per unit volume in milliliter, found by dividing a mass value by a volume value.
Use this calculator to move between carat per cup and stone per milliliter accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.