Mass per volume density.
Stones per Oil barrel to Drams per Cup Converter — st/bbl to dr/cup
Convert Stone per Oil barrel (st/bbl) to Dram per Cup (dr/cup) using the exact conversion factor (1 stone per oil barrel = 5.333333333 dram per cup). See the formula, worked examples, and conversion table.
Stones per Oil barrel 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 39.94214244 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Oil barrel to Drams per Cup
Stone per Oil barrel 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 = stones per oil barrel × 5.33333333333
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per oil barrel equals 39.942142439 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct stone per oil barrel-to-dram per cup factor of 5.33333333333.
Simple example
1 st/bbl × 5.333333333 = 5.333333333 dr/cup
1 stone per oil barrel = 5.333333333 drams per cup.
Real-world example
1,000 st/bbl × 5.333333333 = 5,333.333333 dr/cup
1,000 stones per oil barrel = 5,333.333333 drams per cup.
Conversion table
| Stone per Oil barrel (st/bbl) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 st/bbl | 0.5333333333 dr/cup |
| 1 st/bbl | 5.333333333 dr/cup |
| 10 st/bbl | 53.33333333 dr/cup |
| 100 st/bbl | 533.3333333 dr/cup |
| 1,000 st/bbl | 5,333.333333 dr/cup |
| 10,000 st/bbl | 53,333.33333 dr/cup |
Reverse conversion: Dram per Cup to Stone per Oil barrel
5.333333333 dr/cup × 0.1875 = 0.9999999999 st/bbl
5.333333333 drams per cup = 0.9999999999 stones per oil barrel.
stones per oil barrel = drams per cup × 0.1875
For a page dedicated to this direction, see Dram per Cup to Stone per Oil barrel.
Understanding the Stone per Oil barrel (st/bbl)
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 stone per oil barrel?
1 stone per oil barrel equals 5.333333333 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert stone per oil barrel to dram per cup?
Multiply the stone per oil barrel value by 5.333333333. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to stone per oil barrel?
Use the reverse factor: 1 dram per cup equals 0.1875 stones per oil barrel. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per oil barrel?
Stone per Oil barrel (st/bbl) is a unit of density.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
Is the stone per oil barrel to dram per cup conversion exact?
Yes. Both stone per oil barrel and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 5.333333333 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.