Mass per volume density.
Ounce per Cubic inches to Carats per Cubic Millimeter Converter — oz/in3 to ct/mm3
Convert Ounce per Cubic inch (oz/in3) to Carat per Cubic Millimeter (ct/mm3) using the exact conversion factor (1 ounce per cubic inch = 0.0086499702 carat per cubic millimeter). See the formula, worked examples, and conversion table.
Ounce per Cubic inches to Carats per Cubic Millimeter converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 1729.994044 / 200000.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounce per Cubic inches to Carats per Cubic Millimeter
Ounce per Cubic inch and Carat per Cubic Millimeter both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
carats per cubic millimeter = ounce per cubic inches × 0.00864997022194
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per cubic inch equals 1729.99404439 base units, and 1 carat per cubic millimeter equals 200000 base units, so dividing one by the other gives the direct ounce per cubic inch-to-carat per cubic millimeter factor of 0.00864997022194.
Simple example
1 oz/in3 × 0.008649970222 = 0.0086499702 ct/mm3
1 ounce per cubic inch = 0.0086499702 carats per cubic millimeter.
Real-world example
1,000 oz/in3 × 0.008649970222 = 8.649970222 ct/mm3
1,000 ounce per cubic inches = 8.649970222 carats per cubic millimeter.
Conversion table
| Ounce per Cubic inch (oz/in3) | Carat per Cubic Millimeter (ct/mm3) |
|---|---|
| 0.1 oz/in3 | 0.000864997 ct/mm3 |
| 1 oz/in3 | 0.0086499702 ct/mm3 |
| 10 oz/in3 | 0.0864997022 ct/mm3 |
| 100 oz/in3 | 0.8649970222 ct/mm3 |
| 1,000 oz/in3 | 8.649970222 ct/mm3 |
| 10,000 oz/in3 | 86.49970222 ct/mm3 |
Reverse conversion: Carat per Cubic Millimeter to Ounce per Cubic inch
0.0086499702 ct/mm3 × 115.6073344 = 0.9999999975 oz/in3
0.0086499702 carats per cubic millimeter = 0.9999999975 ounce per cubic inches.
ounce per cubic inches = carats per cubic millimeter × 115.6073344
For a page dedicated to this direction, see Carat per Cubic Millimeter to Ounce per Cubic inch.
Understanding the Ounce per Cubic inch (oz/in3)
Mass per volume density.
Understanding the Carat per Cubic Millimeter (ct/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per cubic millimeter are in 1 ounce per cubic inch?
1 ounce per cubic inch equals 0.0086499702 carats per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per cubic inch to carat per cubic millimeter?
Multiply the ounce per cubic inch value by 0.008649970222. The converter above does this instantly to whatever precision you set.
How do I convert carat per cubic millimeter back to ounce per cubic inch?
Use the reverse factor: 1 carat per cubic millimeter equals 115.6073344 ounce per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per cubic inch?
Ounce per Cubic inch (oz/in3) is a unit of density.
What is a carat per cubic millimeter?
Carat per Cubic Millimeter (ct/mm3) is a unit of density.
Is the ounce per cubic inch to carat per cubic millimeter conversion exact?
Yes. Both ounce per cubic inch and carat per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.008649970222 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.