Mass per volume density.
Drams per Cubic Millimeter to Stones per Cup Converter — dr/mm3 to st/cup
Convert Dram per Cubic Millimeter (dr/mm3) to Stone per Cup (st/cup) using the exact conversion factor (1 dram per cubic millimeter = 66.01234277 stone per cup). See the formula, worked examples, and conversion table.
Drams per Cubic Millimeter to Stones per Cup 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 1.7718452e+6 / 26841.11972.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Cubic Millimeter to Stones per Cup
Dram per Cubic Millimeter and Stone per Cup 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 cup = drams per cubic millimeter × 66.0123427734
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per cubic millimeter equals 1771845.19531 base units, and 1 stone per cup equals 26841.119719 base units, so dividing one by the other gives the direct dram per cubic millimeter-to-stone per cup factor of 66.0123427734.
Simple example
1 dr/mm3 × 66.01234277 = 66.01234277 st/cup
1 dram per cubic millimeter = 66.01234277 stones per cup.
Real-world example
1,000 dr/mm3 × 66.01234277 = 66,012.34277 st/cup
1,000 drams per cubic millimeter = 66,012.34277 stones per cup.
Conversion table
| Dram per Cubic Millimeter (dr/mm3) | Stone per Cup (st/cup) |
|---|---|
| 0.1 dr/mm3 | 6.601234277 st/cup |
| 1 dr/mm3 | 66.01234277 st/cup |
| 10 dr/mm3 | 660.1234277 st/cup |
| 100 dr/mm3 | 6,601.234277 st/cup |
| 1,000 dr/mm3 | 66,012.34277 st/cup |
| 10,000 dr/mm3 | 660,123.4277 st/cup |
Reverse conversion: Stone per Cup to Dram per Cubic Millimeter
66.01234277 st/cup × 0.01514868217 = 0.9999999999 dr/mm3
66.01234277 stones per cup = 0.9999999999 drams per cubic millimeter.
drams per cubic millimeter = stones per cup × 0.0151486821704
For a page dedicated to this direction, see Stone per Cup to Dram per Cubic Millimeter.
Understanding the Dram per Cubic Millimeter (dr/mm3)
Mass per volume density.
Understanding the Stone per Cup (st/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cup are in 1 dram per cubic millimeter?
1 dram per cubic millimeter equals 66.01234277 stones per cup, using the exact defined conversion factor rather than an estimate.
How do I convert dram per cubic millimeter to stone per cup?
Multiply the dram per cubic millimeter value by 66.01234277. The converter above does this instantly to whatever precision you set.
How do I convert stone per cup back to dram per cubic millimeter?
Use the reverse factor: 1 stone per cup equals 0.0151486822 drams per cubic millimeter. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per cubic millimeter?
Dram per Cubic Millimeter (dr/mm3) is a unit of density.
What is a stone per cup?
Stone per Cup (st/cup) is a unit of density.
Is the dram per cubic millimeter to stone per cup conversion exact?
Yes. Both dram per cubic millimeter and stone per cup are defined by fixed standards rather than physical artifacts, so the factor of 66.01234277 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.