Mass per volume density.
Grains per Milliliter to Carat per Cubic inches Converter — gr/mL to ct/in3
Convert Grain per Milliliter (gr/mL) to Carat per Cubic inch (ct/in3) using the exact conversion factor (1 grain per milliliter = 5.309319427 carat per cubic inch). See the formula, worked examples, and conversion table.
Grains per Milliliter to Carat per Cubic inches 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 64.79891 / 12.20474882.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Milliliter to Carat per Cubic inches
Grain per Milliliter and Carat per Cubic inch 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
carat per cubic inches = grains per milliliter × 5.3093194265
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per milliliter equals 64.79891 base units, and 1 carat per cubic inch equals 12.2047488189 base units, so dividing one by the other gives the direct grain per milliliter-to-carat per cubic inch factor of 5.3093194265.
Simple example
1 gr/mL × 5.309319427 = 5.309319427 ct/in3
1 grain per milliliter = 5.309319427 carat per cubic inches.
Real-world example
1,000 gr/mL × 5.309319427 = 5,309.319427 ct/in3
1,000 grains per milliliter = 5,309.319427 carat per cubic inches.
Conversion table
| Grain per Milliliter (gr/mL) | Carat per Cubic inch (ct/in3) |
|---|---|
| 0.1 gr/mL | 0.5309319427 ct/in3 |
| 1 gr/mL | 5.309319427 ct/in3 |
| 10 gr/mL | 53.09319427 ct/in3 |
| 100 gr/mL | 530.9319427 ct/in3 |
| 1,000 gr/mL | 5,309.319427 ct/in3 |
| 10,000 gr/mL | 53,093.19427 ct/in3 |
Reverse conversion: Carat per Cubic inch to Grain per Milliliter
5.309319427 ct/in3 × 0.1883480574 = 1 gr/mL
5.309319427 carat per cubic inches = 1 grains per milliliter.
grains per milliliter = carat per cubic inches × 0.188348057382
For a page dedicated to this direction, see Carat per Cubic inch to Grain per Milliliter.
Understanding the Grain per Milliliter (gr/mL)
Mass per volume density.
Understanding the Carat per Cubic inch (ct/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carat per cubic inches are in 1 grain per milliliter?
1 grain per milliliter equals 5.309319427 carat per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert grain per milliliter to carat per cubic inch?
Multiply the grain per milliliter value by 5.309319427. The converter above does this instantly to whatever precision you set.
How do I convert carat per cubic inch back to grain per milliliter?
Use the reverse factor: 1 carat per cubic inch equals 0.1883480574 grains per milliliter. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per milliliter?
Grain per Milliliter (gr/mL) is a unit of density.
What is a carat per cubic inch?
Carat per Cubic inch (ct/in3) is a unit of density.
Is the grain per milliliter to carat per cubic inch conversion exact?
Yes. Both grain per milliliter and carat per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 5.309319427 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.