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 Quart
Convert carat per cubic millimeter (ct/mm3) to stone per quart (st/qt) instantly with formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Density calculator
Density Converter
Convert carat per cubic millimeter (ct/mm3) to stone per quart (st/qt) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Stone per Quart (st/qt) expresses mass in stone per unit volume in quart, found by dividing a mass value by a volume value.
st/qt = ct/mm3 × 29.805016
Results update instantly for Carat per Cubic Millimeter to Stone per Quart conversions.
Reserved above the conversion cards and below the converter.
Formula
st/qt = ct/mm3 × 29.805016
ct/mm3 = st/qt × 0.033551
Conversion table
| 1 ct/mm3 | 29.805016 st/qt |
| 5 ct/mm3 | 149.02508 st/qt |
| 10 ct/mm3 | 298.050159 st/qt |
| 20 ct/mm3 | 596.100318 st/qt |
| 50 ct/mm3 | 1490.250795 st/qt |
| 100 ct/mm3 | 2980.50159 st/qt |
| 500 ct/mm3 | 14902.50795 st/qt |
| 1000 ct/mm3 | 29805.0159 st/qt |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both carat per cubic millimeter and stone per quart 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 29.805016 to get stone per quart. To reverse the conversion, multiply a stone per quart value by 0.033551 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 Quart (st/qt)?
Stone per Quart (st/qt) expresses mass in stone per unit volume in quart, found by dividing a mass value by a volume value.
How do I convert carat per cubic millimeter to stone per quart?
Multiply the carat per cubic millimeter value by 29.805016 to get the equivalent in stone per quart. For example, 5 ct/mm3 × 29.805016 = 149.02508 st/qt.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 29.805016 is an exact, non-rounded value.
Can I convert stone per quart back to carat per cubic millimeter?
Yes. Divide the stone per quart value by 29.805016, or multiply it by 0.033551, to get carat per cubic millimeter.
Reserved between the FAQ and the article so the page stays balanced.
About converting carat per cubic millimeter to stone per quart
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 Quart (st/qt) expresses mass in stone per unit volume in quart, found by dividing a mass value by a volume value.
Use this calculator to move between carat per cubic millimeter and stone per quart accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.