Mass per volume density.
Grains per Cup to Slugs per Cup Converter — gr/cup to slug/cup
Convert Grain per Cup (gr/cup) to Slug per Cup (slug/cup) using the exact conversion factor (1 grain per cup = 0.0000044401 slug per cup). See the formula, worked examples, and conversion table.
Grains per Cup to Slugs per Cup 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 / 61684.82065.
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 Cup
Grain per Cup and Slug per Cup 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 cup = grains per cup × 0.0000044401357388
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 cup equals 61684.8206534 base units, so dividing one by the other gives the direct grain per cup-to-slug per cup factor of 0.0000044401357388.
Simple example
1 gr/cup × 0.000004440135739 = 0.0000044401 slug/cup
1 grain per cup = 0.0000044401 slugs per cup.
Real-world example
1,000 gr/cup × 0.000004440135739 = 0.0044401357 slug/cup
1,000 grains per cup = 0.0044401357 slugs per cup.
Conversion table
| Grain per Cup (gr/cup) | Slug per Cup (slug/cup) |
|---|---|
| 0.1 gr/cup | 4.440136e-7 slug/cup |
| 1 gr/cup | 0.0000044401 slug/cup |
| 10 gr/cup | 0.0000444014 slug/cup |
| 100 gr/cup | 0.0004440136 slug/cup |
| 1,000 gr/cup | 0.0044401357 slug/cup |
| 10,000 gr/cup | 0.0444013574 slug/cup |
Reverse conversion: Slug per Cup to Grain per Cup
0.0000044401 slug/cup × 225218.3399 = 0.999991951 gr/cup
0.0000044401 slugs per cup = 0.999991951 grains per cup.
grains per cup = slugs per cup × 225218.339895
For a page dedicated to this direction, see Slug per Cup to Grain per Cup.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Understanding the Slug per Cup (slug/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per cup are in 1 grain per cup?
1 grain per cup equals 0.0000044401 slugs per cup, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cup to slug per cup?
Multiply the grain per cup value by 0.000004440135739. The converter above does this instantly to whatever precision you set.
How do I convert slug per cup back to grain per cup?
Use the reverse factor: 1 slug per cup equals 225,218.3399 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 cup?
Slug per Cup (slug/cup) is a unit of density.
Is the grain per cup to slug per cup conversion exact?
Yes. Both grain per cup and slug per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.000004440135739 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.