Mass per volume density.
Carats per Cup to Stones per Oil barrel Converter — ct/cup to st/bbl
Convert Carat per Cup (ct/cup) to Stone per Oil barrel (st/bbl) using the exact conversion factor (1 carat per cup = 0.0211643772 stone per oil barrel). See the formula, worked examples, and conversion table.
Carats per Cup to Stones 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 0.8453505675 / 39.94214244.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Cup to Stones per Oil barrel
Carat per Cup and Stone 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
stones per oil barrel = carats per cup × 0.0211643771697
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per cup equals 0.845350567546 base units, and 1 stone per oil barrel equals 39.942142439 base units, so dividing one by the other gives the direct carat per cup-to-stone per oil barrel factor of 0.0211643771697.
Simple example
1 ct/cup × 0.02116437717 = 0.0211643772 st/bbl
1 carat per cup = 0.0211643772 stones per oil barrel.
Real-world example
1,000 ct/cup × 0.02116437717 = 21.16437717 st/bbl
1,000 carats per cup = 21.16437717 stones per oil barrel.
Conversion table
| Carat per Cup (ct/cup) | Stone per Oil barrel (st/bbl) |
|---|---|
| 0.1 ct/cup | 0.0021164377 st/bbl |
| 1 ct/cup | 0.0211643772 st/bbl |
| 10 ct/cup | 0.2116437717 st/bbl |
| 100 ct/cup | 2.116437717 st/bbl |
| 1,000 ct/cup | 21.16437717 st/bbl |
| 10,000 ct/cup | 211.6437717 st/bbl |
Reverse conversion: Stone per Oil barrel to Carat per Cup
0.0211643772 st/bbl × 47.24920521 = 1.000000001 ct/cup
0.0211643772 stones per oil barrel = 1.000000001 carats per cup.
carats per cup = stones per oil barrel × 47.2492052083
For a page dedicated to this direction, see Stone per Oil barrel to Carat per Cup.
Understanding the Carat per Cup (ct/cup)
Mass per volume density.
Understanding the Stone per Oil barrel (st/bbl)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per oil barrel are in 1 carat per cup?
1 carat per cup equals 0.0211643772 stones per oil barrel, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cup to stone per oil barrel?
Multiply the carat per cup value by 0.02116437717. The converter above does this instantly to whatever precision you set.
How do I convert stone per oil barrel back to carat per cup?
Use the reverse factor: 1 stone per oil barrel equals 47.24920521 carats per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per cup?
Carat per Cup (ct/cup) is a unit of density.
What is a stone per oil barrel?
Stone per Oil barrel (st/bbl) is a unit of density.
Is the carat per cup to stone per oil barrel conversion exact?
Yes. Both carat per cup and stone per oil barrel are defined by fixed standards rather than physical artifacts, so the factor of 0.02116437717 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.