Carat per Teaspoon (ct/tsp) expresses mass in carat per unit volume in teaspoon, found by dividing a mass value by a volume value.
Carat per Teaspoon to Stone per Milliliter
Convert carat per teaspoon (ct/tsp) to stone per milliliter (st/mL) instantly with formula, conversion table, and FAQ.
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Convert carat per teaspoon (ct/tsp) 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/tsp × 6.389757e-6
Results update instantly for Carat per Teaspoon to Stone per Milliliter conversions.
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Formula
st/mL = ct/tsp × 6.389757e-6
ct/tsp = st/mL × 156500.485908
Conversion table
| 1 ct/tsp | 6.389757e-6 st/mL |
| 5 ct/tsp | 3.194878e-5 st/mL |
| 10 ct/tsp | 6.389757e-5 st/mL |
| 20 ct/tsp | 0.000128 st/mL |
| 50 ct/tsp | 0.000319 st/mL |
| 100 ct/tsp | 0.000639 st/mL |
| 500 ct/tsp | 0.003195 st/mL |
| 1000 ct/tsp | 0.00639 st/mL |
Related conversions
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How the formula works
Both carat per teaspoon 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 teaspoon by 6.389757e-6 to get stone per milliliter. To reverse the conversion, multiply a stone per milliliter value by 156500.485908 to get back to carat per teaspoon.
Frequently asked questions
What is Carat per Teaspoon (ct/tsp)?
Carat per Teaspoon (ct/tsp) expresses mass in carat per unit volume in teaspoon, 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 teaspoon to stone per milliliter?
Multiply the carat per teaspoon value by 6.389757e-6 to get the equivalent in stone per milliliter. For example, 5 ct/tsp × 6.389757e-6 = 3.194878e-5 st/mL.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 6.389757e-6 is an exact, non-rounded value.
Can I convert stone per milliliter back to carat per teaspoon?
Yes. Divide the stone per milliliter value by 6.389757e-6, or multiply it by 156500.485908, to get carat per teaspoon.
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About converting carat per teaspoon to stone per milliliter
Carat per Teaspoon (ct/tsp) expresses mass in carat per unit volume in teaspoon, 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 teaspoon 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.