Mass per volume density.
Grains per Cup to Slugs per Oil barrel Converter — gr/cup to slug/bbl
Convert Grain per Cup (gr/cup) to Slug per Oil barrel (slug/bbl) using the exact conversion factor (1 grain per cup = 0.0029837712 slug per oil barrel). See the formula, worked examples, and conversion table.
Grains per Cup to Slugs per Oil barrel 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 / 91.79288788.
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 Oil barrel
Grain per Cup and Slug per Oil barrel 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 oil barrel = grains per cup × 0.00298377121647
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 oil barrel equals 91.792887877 base units, so dividing one by the other gives the direct grain per cup-to-slug per oil barrel factor of 0.00298377121647.
Simple example
1 gr/cup × 0.002983771216 = 0.0029837712 slug/bbl
1 grain per cup = 0.0029837712 slugs per oil barrel.
Real-world example
1,000 gr/cup × 0.002983771216 = 2.983771216 slug/bbl
1,000 grains per cup = 2.983771216 slugs per oil barrel.
Conversion table
| Grain per Cup (gr/cup) | Slug per Oil barrel (slug/bbl) |
|---|---|
| 0.1 gr/cup | 0.0002983771 slug/bbl |
| 1 gr/cup | 0.0029837712 slug/bbl |
| 10 gr/cup | 0.0298377122 slug/bbl |
| 100 gr/cup | 0.2983771216 slug/bbl |
| 1,000 gr/cup | 2.983771216 slug/bbl |
| 10,000 gr/cup | 29.83771216 slug/bbl |
Reverse conversion: Slug per Oil barrel to Grain per Cup
0.0029837712 slug/bbl × 335.1463391 = 0.9999999945 gr/cup
0.0029837712 slugs per oil barrel = 0.9999999945 grains per cup.
grains per cup = slugs per oil barrel × 335.146339129
For a page dedicated to this direction, see Slug per Oil barrel to Grain per Cup.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Understanding the Slug per Oil barrel (slug/bbl)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per oil barrel are in 1 grain per cup?
1 grain per cup equals 0.0029837712 slugs per oil barrel, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cup to slug per oil barrel?
Multiply the grain per cup value by 0.002983771216. The converter above does this instantly to whatever precision you set.
How do I convert slug per oil barrel back to grain per cup?
Use the reverse factor: 1 slug per oil barrel equals 335.1463391 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 oil barrel?
Slug per Oil barrel (slug/bbl) is a unit of density.
Is the grain per cup to slug per oil barrel conversion exact?
Yes. Both grain per cup and slug per oil barrel are defined by fixed standards rather than physical artifacts, so the factor of 0.002983771216 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.