Mass per volume density.
Carats per Cubic Meter to Grains per Quart Converter — ct/m3 to gr/qt
Convert Carat per Cubic Meter (ct/m3) to Grain per Quart (gr/qt) using the exact conversion factor (1 carat per cubic meter = 0.0029208916 grain per quart). See the formula, worked examples, and conversion table.
Carats per Cubic Meter 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 0.0002 / 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 Cubic Meter to Grains per Quart
Carat per Cubic Meter 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 cubic meter × 0.00292089155821
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per cubic meter equals 0.0002 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct carat per cubic meter-to-grain per quart factor of 0.00292089155821.
Simple example
1 ct/m3 × 0.002920891558 = 0.0029208916 gr/qt
1 carat per cubic meter = 0.0029208916 grains per quart.
Real-world example
1,000 ct/m3 × 0.002920891558 = 2.920891558 gr/qt
1,000 carats per cubic meter = 2.920891558 grains per quart.
Conversion table
| Carat per Cubic Meter (ct/m3) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 ct/m3 | 0.0002920892 gr/qt |
| 1 ct/m3 | 0.0029208916 gr/qt |
| 10 ct/m3 | 0.0292089156 gr/qt |
| 100 ct/m3 | 0.2920891558 gr/qt |
| 1,000 ct/m3 | 2.920891558 gr/qt |
| 10,000 ct/m3 | 29.20891558 gr/qt |
Reverse conversion: Grain per Quart to Carat per Cubic Meter
0.0029208916 gr/qt × 342.3612209 = 1.000000014 ct/m3
0.0029208916 grains per quart = 1.000000014 carats per cubic meter.
carats per cubic meter = grains per quart × 342.361220905
For a page dedicated to this direction, see Grain per Quart to Carat per Cubic Meter.
Understanding the Carat per Cubic Meter (ct/m3)
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 cubic meter?
1 carat per cubic meter equals 0.0029208916 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic meter to grain per quart?
Multiply the carat per cubic meter value by 0.002920891558. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to carat per cubic meter?
Use the reverse factor: 1 grain per quart equals 342.3612209 carats per cubic meter. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per cubic meter?
Carat per Cubic Meter (ct/m3) 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 cubic meter to grain per quart conversion exact?
Yes. Both carat per cubic meter and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.002920891558 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.