Mass per volume density.
Drams per Cup to Grains per Cup Converter — dr/cup to gr/cup
Convert Dram per Cup (dr/cup) to Grain per Cup (gr/cup) using the exact conversion factor (1 dram per cup = 27.34375 grain per cup). See the formula, worked examples, and conversion table.
Drams per Cup to Grains 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 7.489151707 / 0.2738889767.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Cup to Grains per Cup
Dram per Cup and Grain 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
grains per cup = drams per cup × 27.34375
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per cup equals 7.48915170731 base units, and 1 grain per cup equals 0.273888976724 base units, so dividing one by the other gives the direct dram per cup-to-grain per cup factor of 27.34375.
Simple example
1 dr/cup × 27.34375 = 27.34375 gr/cup
1 dram per cup = 27.34375 grains per cup.
Real-world example
1,000 dr/cup × 27.34375 = 27,343.75 gr/cup
1,000 drams per cup = 27,343.75 grains per cup.
Conversion table
| Dram per Cup (dr/cup) | Grain per Cup (gr/cup) |
|---|---|
| 0.1 dr/cup | 2.734375 gr/cup |
| 1 dr/cup | 27.34375 gr/cup |
| 10 dr/cup | 273.4375 gr/cup |
| 100 dr/cup | 2,734.375 gr/cup |
| 1,000 dr/cup | 27,343.75 gr/cup |
| 10,000 dr/cup | 273,437.5 gr/cup |
Reverse conversion: Grain per Cup to Dram per Cup
27.34375 gr/cup × 0.03657142857 = 1 dr/cup
27.34375 grains per cup = 1 drams per cup.
drams per cup = grains per cup × 0.0365714285714
For a page dedicated to this direction, see Grain per Cup to Dram per Cup.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cup are in 1 dram per cup?
1 dram per cup equals 27.34375 grains per cup, using the exact defined conversion factor rather than an estimate.
How do I convert dram per cup to grain per cup?
Multiply the dram per cup value by 27.34375. The converter above does this instantly to whatever precision you set.
How do I convert grain per cup back to dram per cup?
Use the reverse factor: 1 grain per cup equals 0.0365714286 drams per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
What is a grain per cup?
Grain per Cup (gr/cup) is a unit of density.
Is the dram per cup to grain per cup conversion exact?
Yes. Both dram per cup and grain per cup are defined by fixed standards rather than physical artifacts, so the factor of 27.34375 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.