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 Grain per Cubic inch
Convert carat per cubic inch (ct/in3) to grain per cubic inch (gr/in3) 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 inch (ct/in3) to grain per cubic inch (gr/in3) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Grain per Cubic inch (gr/in3) expresses mass in grain per unit volume in cubic inch, found by dividing a mass value by a volume value.
gr/in3 = ct/in3 × 3.086472
Results update instantly for Carat per Cubic inch to Grain per Cubic inch conversions.
Reserved above the conversion cards and below the converter.
Formula
gr/in3 = ct/in3 × 3.086472
ct/in3 = gr/in3 × 0.323995
Conversion table
| 1 ct/in3 | 3.086472 gr/in3 |
| 5 ct/in3 | 15.432358 gr/in3 |
| 10 ct/in3 | 30.864717 gr/in3 |
| 20 ct/in3 | 61.729433 gr/in3 |
| 50 ct/in3 | 154.323584 gr/in3 |
| 100 ct/in3 | 308.647167 gr/in3 |
| 500 ct/in3 | 1543.235835 gr/in3 |
| 1000 ct/in3 | 3086.471671 gr/in3 |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both carat per cubic inch and grain per cubic inch 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 3.086472 to get grain per cubic inch. To reverse the conversion, multiply a grain per cubic inch value by 0.323995 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 Grain per Cubic inch (gr/in3)?
Grain per Cubic inch (gr/in3) expresses mass in grain per unit volume in cubic inch, found by dividing a mass value by a volume value.
How do I convert carat per cubic inch to grain per cubic inch?
Multiply the carat per cubic inch value by 3.086472 to get the equivalent in grain per cubic inch. For example, 5 ct/in3 × 3.086472 = 15.432358 gr/in3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 3.086472 is an exact, non-rounded value.
Can I convert grain per cubic inch back to carat per cubic inch?
Yes. Divide the grain per cubic inch value by 3.086472, or multiply it by 0.323995, to get carat per cubic inch.
Reserved between the FAQ and the article so the page stays balanced.
About converting carat per cubic inch to grain per cubic inch
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. Grain per Cubic inch (gr/in3) expresses mass in grain per unit volume in cubic inch, found by dividing a mass value by a volume value.
Use this calculator to move between carat per cubic inch and grain per cubic inch accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.