Carat per Cubic inch (ct/in3) expresses mass in carat per unit volume in cubic inch, found by dividing a mass value by a volume value.
Carat per Cubic inch to Stone per Cup
Convert carat per cubic inch (ct/in3) to stone per cup (st/cup) instantly with formula, conversion table, and FAQ.
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Convert carat per cubic inch (ct/in3) to stone per cup (st/cup) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Stone per Cup (st/cup) expresses mass in stone per unit volume in cup, found by dividing a mass value by a volume value.
st/cup = ct/in3 × 0.000455
Results update instantly for Carat per Cubic inch to Stone per Cup conversions.
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Formula
st/cup = ct/in3 × 0.000455
ct/in3 = st/cup × 2199.235733
Conversion table
| 1 ct/in3 | 0.000455 st/cup |
| 5 ct/in3 | 0.002274 st/cup |
| 10 ct/in3 | 0.004547 st/cup |
| 20 ct/in3 | 0.009094 st/cup |
| 50 ct/in3 | 0.022735 st/cup |
| 100 ct/in3 | 0.04547 st/cup |
| 500 ct/in3 | 0.227352 st/cup |
| 1000 ct/in3 | 0.454703 st/cup |
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How the formula works
Both carat per cubic inch and stone per cup measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in carat per cubic inch by 0.000455 to get stone per cup. To reverse the conversion, multiply a stone per cup value by 2199.235733 to get back to carat per cubic inch.
Frequently asked questions
What is Carat per Cubic inch (ct/in3)?
Carat per Cubic inch (ct/in3) expresses mass in carat per unit volume in cubic inch, found by dividing a mass value by a volume value.
What is Stone per Cup (st/cup)?
Stone per Cup (st/cup) expresses mass in stone per unit volume in cup, found by dividing a mass value by a volume value.
How do I convert carat per cubic inch to stone per cup?
Multiply the carat per cubic inch value by 0.000455 to get the equivalent in stone per cup. For example, 5 ct/in3 × 0.000455 = 0.002274 st/cup.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 0.000455 is an exact, non-rounded value.
Can I convert stone per cup back to carat per cubic inch?
Yes. Divide the stone per cup value by 0.000455, or multiply it by 2199.235733, to get carat per cubic inch.
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About converting carat per cubic inch to stone per cup
Carat per Cubic inch (ct/in3) expresses mass in carat per unit volume in cubic inch, found by dividing a mass value by a volume value. Stone per Cup (st/cup) expresses mass in stone per unit volume in cup, found by dividing a mass value by a volume value.
Use this calculator to move between carat per cubic inch and stone per cup accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.