Mass per volume density.
Dram per Cubic inches to Stones per Cup Converter — dr/in3 to st/cup
Convert Dram per Cubic inch (dr/in3) to Stone per Cup (st/cup) using the exact conversion factor (1 dram per cubic inch = 0.0040283203 stone per cup). See the formula, worked examples, and conversion table.
Dram per Cubic inches 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 108.1246278 / 26841.11972.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Dram per Cubic inches to Stones per Cup
Dram per Cubic inch 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 = dram per cubic inches × 0.0040283203125
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per cubic inch equals 108.124627774 base units, and 1 stone per cup equals 26841.119719 base units, so dividing one by the other gives the direct dram per cubic inch-to-stone per cup factor of 0.0040283203125.
Simple example
1 dr/in3 × 0.004028320313 = 0.0040283203 st/cup
1 dram per cubic inch = 0.0040283203 stones per cup.
Real-world example
1,000 dr/in3 × 0.004028320313 = 4.028320313 st/cup
1,000 dram per cubic inches = 4.028320313 stones per cup.
Conversion table
| Dram per Cubic inch (dr/in3) | Stone per Cup (st/cup) |
|---|---|
| 0.1 dr/in3 | 0.000402832 st/cup |
| 1 dr/in3 | 0.0040283203 st/cup |
| 10 dr/in3 | 0.0402832031 st/cup |
| 100 dr/in3 | 0.4028320313 st/cup |
| 1,000 dr/in3 | 4.028320313 st/cup |
| 10,000 dr/in3 | 40.28320313 st/cup |
Reverse conversion: Stone per Cup to Dram per Cubic inch
0.0040283203 st/cup × 248.2424242 = 0.9999999969 dr/in3
0.0040283203 stones per cup = 0.9999999969 dram per cubic inches.
dram per cubic inches = stones per cup × 248.242424242
For a page dedicated to this direction, see Stone per Cup to Dram per Cubic inch.
Understanding the Dram per Cubic inch (dr/in3)
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 inch?
1 dram per cubic inch equals 0.0040283203 stones per cup, using the exact defined conversion factor rather than an estimate.
How do I convert dram per cubic inch to stone per cup?
Multiply the dram per cubic inch value by 0.004028320313. The converter above does this instantly to whatever precision you set.
How do I convert stone per cup back to dram per cubic inch?
Use the reverse factor: 1 stone per cup equals 248.2424242 dram per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per cubic inch?
Dram per Cubic inch (dr/in3) 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 inch to stone per cup conversion exact?
Yes. Both dram per cubic inch and stone per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.004028320313 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.