Mass per volume density.
Grains per Quart to Centigrams per Imperial gallon Converter — gr/qt to cg/imp gal
Convert Grain per Quart (gr/qt) to Centigram per Imperial gallon (cg/imp gal) using the exact conversion factor (1 grain per quart = 31.12809845 centigram per imperial gallon). See the formula, worked examples, and conversion table.
Grains per Quart to Centigrams per Imperial gallon 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 / 0.002199692483.
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 Centigrams per Imperial gallon
Grain per Quart and Centigram per Imperial gallon 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
centigrams per imperial gallon = grains per quart × 31.1280984549
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 centigram per imperial gallon equals 0.00219969248299 base units, so dividing one by the other gives the direct grain per quart-to-centigram per imperial gallon factor of 31.1280984549.
Simple example
1 gr/qt × 31.12809845 = 31.12809845 cg/imp gal
1 grain per quart = 31.12809845 centigrams per imperial gallon.
Real-world example
1,000 gr/qt × 31.12809845 = 31,128.09845 cg/imp gal
1,000 grains per quart = 31,128.09845 centigrams per imperial gallon.
Conversion table
| Grain per Quart (gr/qt) | Centigram per Imperial gallon (cg/imp gal) |
|---|---|
| 0.1 gr/qt | 3.112809845 cg/imp gal |
| 1 gr/qt | 31.12809845 cg/imp gal |
| 10 gr/qt | 311.2809845 cg/imp gal |
| 100 gr/qt | 3,112.809845 cg/imp gal |
| 1,000 gr/qt | 31,128.09845 cg/imp gal |
| 10,000 gr/qt | 311,280.9845 cg/imp gal |
Reverse conversion: Centigram per Imperial gallon to Grain per Quart
31.12809845 cg/imp gal × 0.03212531602 = 0.9999999998 gr/qt
31.12809845 centigrams per imperial gallon = 0.9999999998 grains per quart.
grains per quart = centigrams per imperial gallon × 0.0321253160211
For a page dedicated to this direction, see Centigram per Imperial gallon to Grain per Quart.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Understanding the Centigram per Imperial gallon (cg/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many centigrams per imperial gallon are in 1 grain per quart?
1 grain per quart equals 31.12809845 centigrams per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per quart to centigram per imperial gallon?
Multiply the grain per quart value by 31.12809845. The converter above does this instantly to whatever precision you set.
How do I convert centigram per imperial gallon back to grain per quart?
Use the reverse factor: 1 centigram per imperial gallon equals 0.032125316 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 centigram per imperial gallon?
Centigram per Imperial gallon (cg/imp gal) is a unit of density.
Is the grain per quart to centigram per imperial gallon conversion exact?
Yes. Both grain per quart and centigram per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 31.12809845 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.