Mass per volume density.
Grains per Quart to Slug per Cubic inches Converter — gr/qt to slug/in3
Convert Grain per Quart (gr/qt) to Slug per Cubic inch (slug/in3) using the exact conversion factor (1 grain per quart = 7.688547e-8 slug per cubic inch). See the formula, worked examples, and conversion table.
Grains per Quart to Slug per Cubic inches 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 / 890574.5982.
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 Slug per Cubic inches
Grain per Quart and Slug per Cubic inch 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
slug per cubic inches = grains per quart × 7.688547e-8
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 slug per cubic inch equals 890574.598183 base units, so dividing one by the other gives the direct grain per quart-to-slug per cubic inch factor of 7.688547e-8.
Simple example
1 gr/qt × 7.688547e-8 = 7.688547e-8 slug/in3
1 grain per quart = 7.688547e-8 slug per cubic inches.
Real-world example
1,000 gr/qt × 7.688547e-8 = 0.0000768855 slug/in3
1,000 grains per quart = 0.0000768855 slug per cubic inches.
Conversion table
| Grain per Quart (gr/qt) | Slug per Cubic inch (slug/in3) |
|---|---|
| 0.1 gr/qt | 7.688547e-9 slug/in3 |
| 1 gr/qt | 7.688547e-8 slug/in3 |
| 10 gr/qt | 7.688547e-7 slug/in3 |
| 100 gr/qt | 0.0000076885 slug/in3 |
| 1,000 gr/qt | 0.0000768855 slug/in3 |
| 10,000 gr/qt | 0.0007688547 slug/in3 |
Reverse conversion: Slug per Cubic inch to Grain per Quart
7.688547e-8 slug/in3 × 13006359.13 = 1.000000035 gr/qt
7.688547e-8 slug per cubic inches = 1.000000035 grains per quart.
grains per quart = slug per cubic inches × 13006359.1289
For a page dedicated to this direction, see Slug per Cubic inch to Grain per Quart.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Understanding the Slug per Cubic inch (slug/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slug per cubic inches are in 1 grain per quart?
1 grain per quart equals 7.688547e-8 slug per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert grain per quart to slug per cubic inch?
Multiply the grain per quart value by 7.688547e-8. The converter above does this instantly to whatever precision you set.
How do I convert slug per cubic inch back to grain per quart?
Use the reverse factor: 1 slug per cubic inch equals 13,006,359.13 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 slug per cubic inch?
Slug per Cubic inch (slug/in3) is a unit of density.
Is the grain per quart to slug per cubic inch conversion exact?
Yes. Both grain per quart and slug per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 7.688547e-8 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.