Carat per Cubic Millimeter (ct/mm3) expresses mass in carat per unit volume in cubic millimeter, found by dividing a mass value by a volume value.
Carat per Cubic Millimeter to Stone per Teaspoon
Convert carat per cubic millimeter (ct/mm3) to stone per teaspoon (st/tsp) instantly with formula, conversion table, and FAQ.
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Convert carat per cubic millimeter (ct/mm3) to stone per teaspoon (st/tsp) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Stone per Teaspoon (st/tsp) expresses mass in stone per unit volume in teaspoon, found by dividing a mass value by a volume value.
st/tsp = ct/mm3 × 0.155234
Results update instantly for Carat per Cubic Millimeter to Stone per Teaspoon conversions.
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Formula
st/tsp = ct/mm3 × 0.155234
ct/mm3 = st/tsp × 6.441869
Conversion table
| 1 ct/mm3 | 0.155234 st/tsp |
| 5 ct/mm3 | 0.776172 st/tsp |
| 10 ct/mm3 | 1.552345 st/tsp |
| 20 ct/mm3 | 3.104689 st/tsp |
| 50 ct/mm3 | 7.761723 st/tsp |
| 100 ct/mm3 | 15.523446 st/tsp |
| 500 ct/mm3 | 77.617229 st/tsp |
| 1000 ct/mm3 | 155.234458 st/tsp |
Related conversions
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How the formula works
Both carat per cubic millimeter and stone per teaspoon measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in carat per cubic millimeter by 0.155234 to get stone per teaspoon. To reverse the conversion, multiply a stone per teaspoon value by 6.441869 to get back to carat per cubic millimeter.
Frequently asked questions
What is Carat per Cubic Millimeter (ct/mm3)?
Carat per Cubic Millimeter (ct/mm3) expresses mass in carat per unit volume in cubic millimeter, found by dividing a mass value by a volume value.
What is Stone per Teaspoon (st/tsp)?
Stone per Teaspoon (st/tsp) expresses mass in stone per unit volume in teaspoon, found by dividing a mass value by a volume value.
How do I convert carat per cubic millimeter to stone per teaspoon?
Multiply the carat per cubic millimeter value by 0.155234 to get the equivalent in stone per teaspoon. For example, 5 ct/mm3 × 0.155234 = 0.776172 st/tsp.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 0.155234 is an exact, non-rounded value.
Can I convert stone per teaspoon back to carat per cubic millimeter?
Yes. Divide the stone per teaspoon value by 0.155234, or multiply it by 6.441869, to get carat per cubic millimeter.
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About converting carat per cubic millimeter to stone per teaspoon
Carat per Cubic Millimeter (ct/mm3) expresses mass in carat per unit volume in cubic millimeter, found by dividing a mass value by a volume value. Stone per Teaspoon (st/tsp) expresses mass in stone per unit volume in teaspoon, found by dividing a mass value by a volume value.
Use this calculator to move between carat per cubic millimeter and stone per teaspoon accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.