Mass per volume density.
Slugs per Imperial gallon to Drams per Cup Converter — slug/imp gal to dr/cup
Convert Slug per Imperial gallon (slug/imp gal) to Dram per Cup (dr/cup) using the exact conversion factor (1 slug per imperial gallon = 428.6479944 dram per cup). See the formula, worked examples, and conversion table.
Slugs per Imperial gallon to Drams 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 3210.209859 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs per Imperial gallon to Drams per Cup
Slug per Imperial gallon and Dram 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
drams per cup = slugs per imperial gallon × 428.647994367
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per imperial gallon equals 3210.20985885 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct slug per imperial gallon-to-dram per cup factor of 428.647994367.
Simple example
1 slug/imp gal × 428.6479944 = 428.6479944 dr/cup
1 slug per imperial gallon = 428.6479944 drams per cup.
Real-world example
1,000 slug/imp gal × 428.6479944 = 428,647.9944 dr/cup
1,000 slugs per imperial gallon = 428,647.9944 drams per cup.
Conversion table
| Slug per Imperial gallon (slug/imp gal) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 slug/imp gal | 42.86479944 dr/cup |
| 1 slug/imp gal | 428.6479944 dr/cup |
| 10 slug/imp gal | 4,286.479944 dr/cup |
| 100 slug/imp gal | 42,864.79944 dr/cup |
| 1,000 slug/imp gal | 428,647.9944 dr/cup |
| 10,000 slug/imp gal | 4,286,479.944 dr/cup |
Reverse conversion: Dram per Cup to Slug per Imperial gallon
428.6479944 dr/cup × 0.00233291655 = 1 slug/imp gal
428.6479944 drams per cup = 1 slugs per imperial gallon.
slugs per imperial gallon = drams per cup × 0.00233291654957
For a page dedicated to this direction, see Dram per Cup to Slug per Imperial gallon.
Understanding the Slug per Imperial gallon (slug/imp gal)
Mass per volume density.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per cup are in 1 slug per imperial gallon?
1 slug per imperial gallon equals 428.6479944 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert slug per imperial gallon to dram per cup?
Multiply the slug per imperial gallon value by 428.6479944. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to slug per imperial gallon?
Use the reverse factor: 1 dram per cup equals 0.0023329166 slugs per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per imperial gallon?
Slug per Imperial gallon (slug/imp gal) is a unit of density.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
Is the slug per imperial gallon to dram per cup conversion exact?
Yes. Both slug per imperial gallon and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 428.6479944 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.