Mass per volume density.
Drams per Fluid ounce to Stones per Teaspoon Converter — dr/fl oz to st/tsp
Convert Dram per Fluid ounce (dr/fl oz) to Stone per Teaspoon (st/tsp) using the exact conversion factor (1 dram per fluid ounce = 0.000046503 stone per teaspoon). See the formula, worked examples, and conversion table.
Drams per Fluid ounce to Stones per Teaspoon 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 / 1.28837375e+6.
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 Teaspoon
Dram per Fluid ounce and Stone per Teaspoon 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 teaspoon = drams per fluid ounce × 0.0000465029761905
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 teaspoon equals 1288373.74651 base units, so dividing one by the other gives the direct dram per fluid ounce-to-stone per teaspoon factor of 0.0000465029761905.
Simple example
1 dr/fl oz × 0.00004650297619 = 0.000046503 st/tsp
1 dram per fluid ounce = 0.000046503 stones per teaspoon.
Real-world example
1,000 dr/fl oz × 0.00004650297619 = 0.0465029762 st/tsp
1,000 drams per fluid ounce = 0.0465029762 stones per teaspoon.
Conversion table
| Dram per Fluid ounce (dr/fl oz) | Stone per Teaspoon (st/tsp) |
|---|---|
| 0.1 dr/fl oz | 0.0000046503 st/tsp |
| 1 dr/fl oz | 0.000046503 st/tsp |
| 10 dr/fl oz | 0.0004650298 st/tsp |
| 100 dr/fl oz | 0.0046502976 st/tsp |
| 1,000 dr/fl oz | 0.0465029762 st/tsp |
| 10,000 dr/fl oz | 0.4650297619 st/tsp |
Reverse conversion: Stone per Teaspoon to Dram per Fluid ounce
0.000046503 st/tsp × 21504 = 1.000000512 dr/fl oz
0.000046503 stones per teaspoon = 1.000000512 drams per fluid ounce.
drams per fluid ounce = stones per teaspoon × 21504
For a page dedicated to this direction, see Stone per Teaspoon to Dram per Fluid ounce.
Understanding the Dram per Fluid ounce (dr/fl oz)
Mass per volume density.
Understanding the Stone per Teaspoon (st/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per teaspoon are in 1 dram per fluid ounce?
1 dram per fluid ounce equals 0.000046503 stones per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert dram per fluid ounce to stone per teaspoon?
Multiply the dram per fluid ounce value by 0.00004650297619. The converter above does this instantly to whatever precision you set.
How do I convert stone per teaspoon back to dram per fluid ounce?
Use the reverse factor: 1 stone per teaspoon equals 21,504 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 teaspoon?
Stone per Teaspoon (st/tsp) is a unit of density.
Is the dram per fluid ounce to stone per teaspoon conversion exact?
Yes. Both dram per fluid ounce and stone per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.00004650297619 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.