Mass per volume density.
Carats per Milliliter to Grains per Quart Converter — ct/mL to gr/qt
Convert Carat per Milliliter (ct/mL) to Grain per Quart (gr/qt) using the exact conversion factor (1 carat per milliliter = 2,920.891558 grain per quart). See the formula, worked examples, and conversion table.
Carats per Milliliter to Grains per Quart 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 200 / 0.06847224418.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Milliliter to Grains per Quart
Carat per Milliliter and Grain per Quart 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 quart = carats per milliliter × 2920.89155821
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per milliliter equals 200 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct carat per milliliter-to-grain per quart factor of 2920.89155821.
Simple example
1 ct/mL × 2920.891558 = 2,920.891558 gr/qt
1 carat per milliliter = 2,920.891558 grains per quart.
Real-world example
1,000 ct/mL × 2920.891558 = 2,920,891.558 gr/qt
1,000 carats per milliliter = 2,920,891.558 grains per quart.
Conversion table
| Carat per Milliliter (ct/mL) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 ct/mL | 292.0891558 gr/qt |
| 1 ct/mL | 2,920.891558 gr/qt |
| 10 ct/mL | 29,208.91558 gr/qt |
| 100 ct/mL | 292,089.1558 gr/qt |
| 1,000 ct/mL | 2,920,891.558 gr/qt |
| 10,000 ct/mL | 29,208,915.58 gr/qt |
Reverse conversion: Grain per Quart to Carat per Milliliter
1 gr/qt × 0.0003423612209 = 0.0003423612 ct/mL
1 grain per quart = 0.0003423612 carats per milliliter.
carats per milliliter = grains per quart × 0.000342361220905
For a page dedicated to this direction, see Grain per Quart to Carat per Milliliter.
Understanding the Carat per Milliliter (ct/mL)
Mass per volume density.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per quart are in 1 carat per milliliter?
1 carat per milliliter equals 2,920.891558 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert carat per milliliter to grain per quart?
Multiply the carat per milliliter value by 2920.891558. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to carat per milliliter?
Use the reverse factor: 1 grain per quart equals 0.0003423612 carats per milliliter. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per milliliter?
Carat per Milliliter (ct/mL) is a unit of density.
What is a grain per quart?
Grain per Quart (gr/qt) is a unit of density.
Is the carat per milliliter to grain per quart conversion exact?
Yes. Both carat per milliliter and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 2920.891558 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.