Mass per volume density.
Drams per Fluid ounce to Stones per Fluid ounce Converter — dr/fl oz to st/fl oz
Convert Dram per Fluid ounce (dr/fl oz) to Stone per Fluid ounce (st/fl oz) using the exact conversion factor (1 dram per fluid ounce = 0.0002790179 stone per fluid ounce). See the formula, worked examples, and conversion table.
Drams per Fluid ounce 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 59.91321366 / 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 Fluid ounce to Stones per Fluid ounce
Dram per Fluid ounce 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 fluid ounce × 0.000279017857143
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per fluid ounce equals 59.9132136584 base units, and 1 stone per fluid ounce equals 214728.957752 base units, so dividing one by the other gives the direct dram per fluid ounce-to-stone per fluid ounce factor of 0.000279017857143.
Simple example
1 dr/fl oz × 0.0002790178571 = 0.0002790179 st/fl oz
1 dram per fluid ounce = 0.0002790179 stones per fluid ounce.
Real-world example
1,000 dr/fl oz × 0.0002790178571 = 0.2790178571 st/fl oz
1,000 drams per fluid ounce = 0.2790178571 stones per fluid ounce.
Conversion table
| Dram per Fluid ounce (dr/fl oz) | Stone per Fluid ounce (st/fl oz) |
|---|---|
| 0.1 dr/fl oz | 0.0000279018 st/fl oz |
| 1 dr/fl oz | 0.0002790179 st/fl oz |
| 10 dr/fl oz | 0.0027901786 st/fl oz |
| 100 dr/fl oz | 0.0279017857 st/fl oz |
| 1,000 dr/fl oz | 0.2790178571 st/fl oz |
| 10,000 dr/fl oz | 2.790178571 st/fl oz |
Reverse conversion: Stone per Fluid ounce to Dram per Fluid ounce
0.0002790179 st/fl oz × 3584 = 1.000000154 dr/fl oz
0.0002790179 stones per fluid ounce = 1.000000154 drams per fluid ounce.
drams per fluid ounce = stones per fluid ounce × 3584
For a page dedicated to this direction, see Stone per Fluid ounce to Dram per Fluid ounce.
Understanding the Dram per Fluid ounce (dr/fl oz)
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 fluid ounce?
1 dram per fluid ounce equals 0.0002790179 stones per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert dram per fluid ounce to stone per fluid ounce?
Multiply the dram per fluid ounce value by 0.0002790178571. The converter above does this instantly to whatever precision you set.
How do I convert stone per fluid ounce back to dram per fluid ounce?
Use the reverse factor: 1 stone per fluid ounce equals 3,584 drams per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per fluid ounce?
Dram per Fluid ounce (dr/fl oz) 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 fluid ounce to stone per fluid ounce conversion exact?
Yes. Both dram per fluid ounce and stone per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.0002790178571 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.