Mass per volume density.
Stones per Fluid ounce to Drams per Milliliter Converter — st/fl oz to dr/mL
Convert Stone per Fluid ounce (st/fl oz) to Dram per Milliliter (dr/mL) using the exact conversion factor (1 stone per fluid ounce = 121.1894574 dram per milliliter). See the formula, worked examples, and conversion table.
Stones per Fluid ounce to Drams per Milliliter 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 214728.9578 / 1771.845195.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Fluid ounce to Drams per Milliliter
Stone per Fluid ounce and Dram per Milliliter 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 milliliter = stones per fluid ounce × 121.189457363
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per fluid ounce equals 214728.957752 base units, and 1 dram per milliliter equals 1771.84519531 base units, so dividing one by the other gives the direct stone per fluid ounce-to-dram per milliliter factor of 121.189457363.
Simple example
1 st/fl oz × 121.1894574 = 121.1894574 dr/mL
1 stone per fluid ounce = 121.1894574 drams per milliliter.
Real-world example
1,000 st/fl oz × 121.1894574 = 121,189.4574 dr/mL
1,000 stones per fluid ounce = 121,189.4574 drams per milliliter.
Conversion table
| Stone per Fluid ounce (st/fl oz) | Dram per Milliliter (dr/mL) |
|---|---|
| 0.1 st/fl oz | 12.11894574 dr/mL |
| 1 st/fl oz | 121.1894574 dr/mL |
| 10 st/fl oz | 1,211.894574 dr/mL |
| 100 st/fl oz | 12,118.94574 dr/mL |
| 1,000 st/fl oz | 121,189.4574 dr/mL |
| 10,000 st/fl oz | 1,211,894.574 dr/mL |
Reverse conversion: Dram per Milliliter to Stone per Fluid ounce
121.1894574 dr/mL × 0.008251542847 = 1 st/fl oz
121.1894574 drams per milliliter = 1 stones per fluid ounce.
stones per fluid ounce = drams per milliliter × 0.00825154284668
For a page dedicated to this direction, see Dram per Milliliter to Stone per Fluid ounce.
Understanding the Stone per Fluid ounce (st/fl oz)
Mass per volume density.
Understanding the Dram per Milliliter (dr/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per milliliter are in 1 stone per fluid ounce?
1 stone per fluid ounce equals 121.1894574 drams per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert stone per fluid ounce to dram per milliliter?
Multiply the stone per fluid ounce value by 121.1894574. The converter above does this instantly to whatever precision you set.
How do I convert dram per milliliter back to stone per fluid ounce?
Use the reverse factor: 1 dram per milliliter equals 0.0082515428 stones per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per fluid ounce?
Stone per Fluid ounce (st/fl oz) is a unit of density.
What is a dram per milliliter?
Dram per Milliliter (dr/mL) is a unit of density.
Is the stone per fluid ounce to dram per milliliter conversion exact?
Yes. Both stone per fluid ounce and dram per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 121.1894574 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.