Mass per volume density.
Carats per Quart to Grains per Quart Converter — ct/qt to gr/qt
Convert Carat per Quart (ct/qt) to Grain per Quart (gr/qt) using the exact conversion factor (1 carat per quart = 3.086471671 grain per quart). See the formula, worked examples, and conversion table.
Carats per Quart 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 0.2113376419 / 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 Quart to Grains per Quart
Carat per Quart 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 quart × 3.08647167059
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per quart equals 0.211337641887 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct carat per quart-to-grain per quart factor of 3.08647167059.
Simple example
1 ct/qt × 3.086471671 = 3.086471671 gr/qt
1 carat per quart = 3.086471671 grains per quart.
Real-world example
1,000 ct/qt × 3.086471671 = 3,086.471671 gr/qt
1,000 carats per quart = 3,086.471671 grains per quart.
Conversion table
| Carat per Quart (ct/qt) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 ct/qt | 0.3086471671 gr/qt |
| 1 ct/qt | 3.086471671 gr/qt |
| 10 ct/qt | 30.86471671 gr/qt |
| 100 ct/qt | 308.6471671 gr/qt |
| 1,000 ct/qt | 3,086.471671 gr/qt |
| 10,000 ct/qt | 30,864.71671 gr/qt |
Reverse conversion: Grain per Quart to Carat per Quart
3.086471671 gr/qt × 0.32399455 = 1 ct/qt
3.086471671 grains per quart = 1 carats per quart.
carats per quart = grains per quart × 0.32399455
For a page dedicated to this direction, see Grain per Quart to Carat per Quart.
Understanding the Carat per Quart (ct/qt)
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 quart?
1 carat per quart equals 3.086471671 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert carat per quart to grain per quart?
Multiply the carat per quart value by 3.086471671. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to carat per quart?
Use the reverse factor: 1 grain per quart equals 0.32399455 carats per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per quart?
Carat per Quart (ct/qt) 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 quart to grain per quart conversion exact?
Yes. Both carat per quart and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 3.086471671 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.