Mass per volume density.
Carats per Fluid ounce to Grains per Cubic Millimeter Converter — ct/fl oz to gr/mm3
Convert Carat per Fluid ounce (ct/fl oz) to Grain per Cubic Millimeter (gr/mm3) using the exact conversion factor (1 carat per fluid ounce = 0.000104366 grain per cubic millimeter). See the formula, worked examples, and conversion table.
Carats per Fluid ounce to Grains 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 6.76280454 / 64798.91.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Fluid ounce to Grains per Cubic Millimeter
Carat per Fluid ounce and Grain 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
grains per cubic millimeter = carats per fluid ounce × 0.000104366023138
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per fluid ounce equals 6.76280454037 base units, and 1 grain per cubic millimeter equals 64798.91 base units, so dividing one by the other gives the direct carat per fluid ounce-to-grain per cubic millimeter factor of 0.000104366023138.
Simple example
1 ct/fl oz × 0.0001043660231 = 0.000104366 gr/mm3
1 carat per fluid ounce = 0.000104366 grains per cubic millimeter.
Real-world example
1,000 ct/fl oz × 0.0001043660231 = 0.1043660231 gr/mm3
1,000 carats per fluid ounce = 0.1043660231 grains per cubic millimeter.
Conversion table
| Carat per Fluid ounce (ct/fl oz) | Grain per Cubic Millimeter (gr/mm3) |
|---|---|
| 0.1 ct/fl oz | 0.0000104366 gr/mm3 |
| 1 ct/fl oz | 0.000104366 gr/mm3 |
| 10 ct/fl oz | 0.0010436602 gr/mm3 |
| 100 ct/fl oz | 0.0104366023 gr/mm3 |
| 1,000 ct/fl oz | 0.1043660231 gr/mm3 |
| 10,000 ct/fl oz | 1.043660231 gr/mm3 |
Reverse conversion: Grain per Cubic Millimeter to Carat per Fluid ounce
0.000104366 gr/mm3 × 9581.662403 = 0.9999997783 ct/fl oz
0.000104366 grains per cubic millimeter = 0.9999997783 carats per fluid ounce.
carats per fluid ounce = grains per cubic millimeter × 9581.66240251
For a page dedicated to this direction, see Grain per Cubic Millimeter to Carat per Fluid ounce.
Understanding the Carat per Fluid ounce (ct/fl oz)
Mass per volume density.
Understanding the Grain per Cubic Millimeter (gr/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cubic millimeter are in 1 carat per fluid ounce?
1 carat per fluid ounce equals 0.000104366 grains per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per fluid ounce to grain per cubic millimeter?
Multiply the carat per fluid ounce value by 0.0001043660231. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic millimeter back to carat per fluid ounce?
Use the reverse factor: 1 grain per cubic millimeter equals 9,581.662403 carats per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per fluid ounce?
Carat per Fluid ounce (ct/fl oz) is a unit of density.
What is a grain per cubic millimeter?
Grain per Cubic Millimeter (gr/mm3) is a unit of density.
Is the carat per fluid ounce to grain per cubic millimeter conversion exact?
Yes. Both carat per fluid ounce and grain per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.0001043660231 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.