Mass per volume density.
Stones per Teaspoon to Drams per Cubic Millimeter Converter — st/tsp to dr/mm3
Convert Stone per Teaspoon (st/tsp) to Dram per Cubic Millimeter (dr/mm3) using the exact conversion factor (1 stone per teaspoon = 0.7271367442 dram per cubic millimeter). See the formula, worked examples, and conversion table.
Stones per Teaspoon to Drams per Cubic Millimeter 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 1.28837375e+6 / 1.7718452e+6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Teaspoon to Drams per Cubic Millimeter
Stone per Teaspoon and Dram per Cubic Millimeter 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 cubic millimeter = stones per teaspoon × 0.72713674418
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per teaspoon equals 1288373.74651 base units, and 1 dram per cubic millimeter equals 1771845.19531 base units, so dividing one by the other gives the direct stone per teaspoon-to-dram per cubic millimeter factor of 0.72713674418.
Simple example
1 st/tsp × 0.7271367442 = 0.7271367442 dr/mm3
1 stone per teaspoon = 0.7271367442 drams per cubic millimeter.
Real-world example
1,000 st/tsp × 0.7271367442 = 727.1367442 dr/mm3
1,000 stones per teaspoon = 727.1367442 drams per cubic millimeter.
Conversion table
| Stone per Teaspoon (st/tsp) | Dram per Cubic Millimeter (dr/mm3) |
|---|---|
| 0.1 st/tsp | 0.0727136744 dr/mm3 |
| 1 st/tsp | 0.7271367442 dr/mm3 |
| 10 st/tsp | 7.271367442 dr/mm3 |
| 100 st/tsp | 72.71367442 dr/mm3 |
| 1,000 st/tsp | 727.1367442 dr/mm3 |
| 10,000 st/tsp | 7,271.367442 dr/mm3 |
Reverse conversion: Dram per Cubic Millimeter to Stone per Teaspoon
0.7271367442 dr/mm3 × 1.375257141 = 1 st/tsp
0.7271367442 drams per cubic millimeter = 1 stones per teaspoon.
stones per teaspoon = drams per cubic millimeter × 1.37525714111
For a page dedicated to this direction, see Dram per Cubic Millimeter to Stone per Teaspoon.
Understanding the Stone per Teaspoon (st/tsp)
Mass per volume density.
Understanding the Dram per Cubic Millimeter (dr/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per cubic millimeter are in 1 stone per teaspoon?
1 stone per teaspoon equals 0.7271367442 drams per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert stone per teaspoon to dram per cubic millimeter?
Multiply the stone per teaspoon value by 0.7271367442. The converter above does this instantly to whatever precision you set.
How do I convert dram per cubic millimeter back to stone per teaspoon?
Use the reverse factor: 1 dram per cubic millimeter equals 1.375257141 stones per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per teaspoon?
Stone per Teaspoon (st/tsp) is a unit of density.
What is a dram per cubic millimeter?
Dram per Cubic Millimeter (dr/mm3) is a unit of density.
Is the stone per teaspoon to dram per cubic millimeter conversion exact?
Yes. Both stone per teaspoon and dram per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.7271367442 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.