Mass per volume density.
Drams per Teaspoon to Stones per Teaspoon Converter — dr/tsp to st/tsp
Convert Dram per Teaspoon (dr/tsp) to Stone per Teaspoon (st/tsp) using the exact conversion factor (1 dram per teaspoon = 0.0002790179 stone per teaspoon). See the formula, worked examples, and conversion table.
Drams per Teaspoon 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 359.479282 / 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 Teaspoon to Stones per Teaspoon
Dram per Teaspoon 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 teaspoon × 0.000279017857143
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per teaspoon equals 359.479281951 base units, and 1 stone per teaspoon equals 1288373.74651 base units, so dividing one by the other gives the direct dram per teaspoon-to-stone per teaspoon factor of 0.000279017857143.
Simple example
1 dr/tsp × 0.0002790178571 = 0.0002790179 st/tsp
1 dram per teaspoon = 0.0002790179 stones per teaspoon.
Real-world example
1,000 dr/tsp × 0.0002790178571 = 0.2790178571 st/tsp
1,000 drams per teaspoon = 0.2790178571 stones per teaspoon.
Conversion table
| Dram per Teaspoon (dr/tsp) | Stone per Teaspoon (st/tsp) |
|---|---|
| 0.1 dr/tsp | 0.0000279018 st/tsp |
| 1 dr/tsp | 0.0002790179 st/tsp |
| 10 dr/tsp | 0.0027901786 st/tsp |
| 100 dr/tsp | 0.0279017857 st/tsp |
| 1,000 dr/tsp | 0.2790178571 st/tsp |
| 10,000 dr/tsp | 2.790178571 st/tsp |
Reverse conversion: Stone per Teaspoon to Dram per Teaspoon
0.0002790179 st/tsp × 3584 = 1.000000154 dr/tsp
0.0002790179 stones per teaspoon = 1.000000154 drams per teaspoon.
drams per teaspoon = stones per teaspoon × 3584
For a page dedicated to this direction, see Stone per Teaspoon to Dram per Teaspoon.
Understanding the Dram per Teaspoon (dr/tsp)
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 teaspoon?
1 dram per teaspoon equals 0.0002790179 stones per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert dram per teaspoon to stone per teaspoon?
Multiply the dram per teaspoon value by 0.0002790178571. The converter above does this instantly to whatever precision you set.
How do I convert stone per teaspoon back to dram per teaspoon?
Use the reverse factor: 1 stone per teaspoon equals 3,584 drams per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per teaspoon?
Dram per Teaspoon (dr/tsp) 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 teaspoon to stone per teaspoon conversion exact?
Yes. Both dram per teaspoon and stone per teaspoon 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.