Mass per volume density.
Drams per Cup to Stones per Fluid ounce Converter — dr/cup to st/fl oz
Convert Dram per Cup (dr/cup) to Stone per Fluid ounce (st/fl oz) using the exact conversion factor (1 dram per cup = 0.0000348772 stone per fluid ounce). See the formula, worked examples, and conversion table.
Drams per Cup to Stones per Fluid ounce 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 7.489151707 / 214728.9578.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Cup to Stones per Fluid ounce
Dram per Cup and Stone per Fluid ounce 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 fluid ounce = drams per cup × 0.0000348772321429
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per cup equals 7.48915170731 base units, and 1 stone per fluid ounce equals 214728.957752 base units, so dividing one by the other gives the direct dram per cup-to-stone per fluid ounce factor of 0.0000348772321429.
Simple example
1 dr/cup × 0.00003487723214 = 0.0000348772 st/fl oz
1 dram per cup = 0.0000348772 stones per fluid ounce.
Real-world example
1,000 dr/cup × 0.00003487723214 = 0.0348772321 st/fl oz
1,000 drams per cup = 0.0348772321 stones per fluid ounce.
Conversion table
| Dram per Cup (dr/cup) | Stone per Fluid ounce (st/fl oz) |
|---|---|
| 0.1 dr/cup | 0.0000034877 st/fl oz |
| 1 dr/cup | 0.0000348772 st/fl oz |
| 10 dr/cup | 0.0003487723 st/fl oz |
| 100 dr/cup | 0.0034877232 st/fl oz |
| 1,000 dr/cup | 0.0348772321 st/fl oz |
| 10,000 dr/cup | 0.3487723214 st/fl oz |
Reverse conversion: Stone per Fluid ounce to Dram per Cup
0.0000348772 st/fl oz × 28672 = 0.9999990784 dr/cup
0.0000348772 stones per fluid ounce = 0.9999990784 drams per cup.
drams per cup = stones per fluid ounce × 28672
For a page dedicated to this direction, see Stone per Fluid ounce to Dram per Cup.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Understanding the Stone per Fluid ounce (st/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per fluid ounce are in 1 dram per cup?
1 dram per cup equals 0.0000348772 stones per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert dram per cup to stone per fluid ounce?
Multiply the dram per cup value by 0.00003487723214. The converter above does this instantly to whatever precision you set.
How do I convert stone per fluid ounce back to dram per cup?
Use the reverse factor: 1 stone per fluid ounce equals 28,672 drams per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
What is a stone per fluid ounce?
Stone per Fluid ounce (st/fl oz) is a unit of density.
Is the dram per cup to stone per fluid ounce conversion exact?
Yes. Both dram per cup and stone per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.00003487723214 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.