Mass per volume density.
Grains per Cup to Slugs per Quart Converter — gr/cup to slug/qt
Convert Grain per Cup (gr/cup) to Slug per Quart (slug/qt) using the exact conversion factor (1 grain per cup = 0.0000177605 slug per quart). See the formula, worked examples, and conversion table.
Grains per Cup to Slugs 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 0.2738889767 / 15421.20516.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Cup to Slugs per Quart
Grain per Cup and Slug 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
slugs per quart = grains per cup × 0.0000177605429552
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cup equals 0.273888976724 base units, and 1 slug per quart equals 15421.2051633 base units, so dividing one by the other gives the direct grain per cup-to-slug per quart factor of 0.0000177605429552.
Simple example
1 gr/cup × 0.00001776054296 = 0.0000177605 slug/qt
1 grain per cup = 0.0000177605 slugs per quart.
Real-world example
1,000 gr/cup × 0.00001776054296 = 0.017760543 slug/qt
1,000 grains per cup = 0.017760543 slugs per quart.
Conversion table
| Grain per Cup (gr/cup) | Slug per Quart (slug/qt) |
|---|---|
| 0.1 gr/cup | 0.0000017761 slug/qt |
| 1 gr/cup | 0.0000177605 slug/qt |
| 10 gr/cup | 0.0001776054 slug/qt |
| 100 gr/cup | 0.0017760543 slug/qt |
| 1,000 gr/cup | 0.017760543 slug/qt |
| 10,000 gr/cup | 0.1776054296 slug/qt |
Reverse conversion: Slug per Quart to Grain per Cup
0.0000177605 slug/qt × 56304.58497 = 0.9999975814 gr/cup
0.0000177605 slugs per quart = 0.9999975814 grains per cup.
grains per cup = slugs per quart × 56304.5849737
For a page dedicated to this direction, see Slug per Quart to Grain per Cup.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Understanding the Slug per Quart (slug/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per quart are in 1 grain per cup?
1 grain per cup equals 0.0000177605 slugs per quart, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cup to slug per quart?
Multiply the grain per cup value by 0.00001776054296. The converter above does this instantly to whatever precision you set.
How do I convert slug per quart back to grain per cup?
Use the reverse factor: 1 slug per quart equals 56,304.58497 grains per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cup?
Grain per Cup (gr/cup) is a unit of density.
What is a slug per quart?
Slug per Quart (slug/qt) is a unit of density.
Is the grain per cup to slug per quart conversion exact?
Yes. Both grain per cup and slug per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.00001776054296 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.