Mass per volume density.
Carat per Cubic inches to Grains per Milliliter Converter — ct/in3 to gr/mL
Convert Carat per Cubic inch (ct/in3) to Grain per Milliliter (gr/mL) using the exact conversion factor (1 carat per cubic inch = 0.1883480574 grain per milliliter). See the formula, worked examples, and conversion table.
Carat per Cubic inches to Grains per Milliliter 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 12.20474882 / 64.79891.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carat per Cubic inches to Grains per Milliliter
Carat per Cubic inch and Grain per Milliliter 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 milliliter = carat per cubic inches × 0.188348057382
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per cubic inch equals 12.2047488189 base units, and 1 grain per milliliter equals 64.79891 base units, so dividing one by the other gives the direct carat per cubic inch-to-grain per milliliter factor of 0.188348057382.
Simple example
1 ct/in3 × 0.1883480574 = 0.1883480574 gr/mL
1 carat per cubic inch = 0.1883480574 grains per milliliter.
Real-world example
1,000 ct/in3 × 0.1883480574 = 188.3480574 gr/mL
1,000 carat per cubic inches = 188.3480574 grains per milliliter.
Conversion table
| Carat per Cubic inch (ct/in3) | Grain per Milliliter (gr/mL) |
|---|---|
| 0.1 ct/in3 | 0.0188348057 gr/mL |
| 1 ct/in3 | 0.1883480574 gr/mL |
| 10 ct/in3 | 1.883480574 gr/mL |
| 100 ct/in3 | 18.83480574 gr/mL |
| 1,000 ct/in3 | 188.3480574 gr/mL |
| 10,000 ct/in3 | 1,883.480574 gr/mL |
Reverse conversion: Grain per Milliliter to Carat per Cubic inch
0.1883480574 gr/mL × 5.309319427 = 1 ct/in3
0.1883480574 grains per milliliter = 1 carat per cubic inches.
carat per cubic inches = grains per milliliter × 5.3093194265
For a page dedicated to this direction, see Grain per Milliliter to Carat per Cubic inch.
Understanding the Carat per Cubic inch (ct/in3)
Mass per volume density.
Understanding the Grain per Milliliter (gr/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per milliliter are in 1 carat per cubic inch?
1 carat per cubic inch equals 0.1883480574 grains per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic inch to grain per milliliter?
Multiply the carat per cubic inch value by 0.1883480574. The converter above does this instantly to whatever precision you set.
How do I convert grain per milliliter back to carat per cubic inch?
Use the reverse factor: 1 grain per milliliter equals 5.309319427 carat per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per cubic inch?
Carat per Cubic inch (ct/in3) is a unit of density.
What is a grain per milliliter?
Grain per Milliliter (gr/mL) is a unit of density.
Is the carat per cubic inch to grain per milliliter conversion exact?
Yes. Both carat per cubic inch and grain per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.1883480574 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.