Mass per volume density.
Grains per Quart to Carats per Quart Converter — gr/qt to ct/qt
Convert Grain per Quart (gr/qt) to Carat per Quart (ct/qt) using the exact conversion factor (1 grain per quart = 0.32399455 carat per quart). See the formula, worked examples, and conversion table.
Grains per Quart to Carats 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 0.06847224418 / 0.2113376419.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Quart to Carats per Quart
Grain per Quart and Carat 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
carats per quart = grains per quart × 0.32399455
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per quart equals 0.0684722441811 base units, and 1 carat per quart equals 0.211337641887 base units, so dividing one by the other gives the direct grain per quart-to-carat per quart factor of 0.32399455.
Simple example
1 gr/qt × 0.32399455 = 0.32399455 ct/qt
1 grain per quart = 0.32399455 carats per quart.
Real-world example
1,000 gr/qt × 0.32399455 = 323.99455 ct/qt
1,000 grains per quart = 323.99455 carats per quart.
Conversion table
| Grain per Quart (gr/qt) | Carat per Quart (ct/qt) |
|---|---|
| 0.1 gr/qt | 0.032399455 ct/qt |
| 1 gr/qt | 0.32399455 ct/qt |
| 10 gr/qt | 3.2399455 ct/qt |
| 100 gr/qt | 32.399455 ct/qt |
| 1,000 gr/qt | 323.99455 ct/qt |
| 10,000 gr/qt | 3,239.9455 ct/qt |
Reverse conversion: Carat per Quart to Grain per Quart
0.32399455 ct/qt × 3.086471671 = 1 gr/qt
0.32399455 carats per quart = 1 grains per quart.
grains per quart = carats per quart × 3.08647167059
For a page dedicated to this direction, see Carat per Quart to Grain per Quart.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Understanding the Carat per Quart (ct/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per quart are in 1 grain per quart?
1 grain per quart equals 0.32399455 carats per quart, using the exact defined conversion factor rather than an estimate.
How do I convert grain per quart to carat per quart?
Multiply the grain per quart value by 0.32399455. The converter above does this instantly to whatever precision you set.
How do I convert carat per quart back to grain per quart?
Use the reverse factor: 1 carat per quart equals 3.086471671 grains per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per quart?
Grain per Quart (gr/qt) is a unit of density.
What is a carat per quart?
Carat per Quart (ct/qt) is a unit of density.
Is the grain per quart to carat per quart conversion exact?
Yes. Both grain per quart and carat per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.32399455 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.