Mass per volume density.
Drams per Imperial gallon to Grains per Cup Converter — dr/imp gal to gr/cup
Convert Dram per Imperial gallon (dr/imp gal) to Grain per Cup (gr/cup) using the exact conversion factor (1 dram per imperial gallon = 1.423027171 grain per cup). See the formula, worked examples, and conversion table.
Drams per Imperial gallon 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 0.3897514557 / 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 Imperial gallon to Grains per Cup
Dram per Imperial gallon 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 imperial gallon × 1.423027171
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per imperial gallon equals 0.389751455715 base units, and 1 grain per cup equals 0.273888976724 base units, so dividing one by the other gives the direct dram per imperial gallon-to-grain per cup factor of 1.423027171.
Simple example
1 dr/imp gal × 1.423027171 = 1.423027171 gr/cup
1 dram per imperial gallon = 1.423027171 grains per cup.
Real-world example
1,000 dr/imp gal × 1.423027171 = 1,423.027171 gr/cup
1,000 drams per imperial gallon = 1,423.027171 grains per cup.
Conversion table
| Dram per Imperial gallon (dr/imp gal) | Grain per Cup (gr/cup) |
|---|---|
| 0.1 dr/imp gal | 0.1423027171 gr/cup |
| 1 dr/imp gal | 1.423027171 gr/cup |
| 10 dr/imp gal | 14.23027171 gr/cup |
| 100 dr/imp gal | 142.3027171 gr/cup |
| 1,000 dr/imp gal | 1,423.027171 gr/cup |
| 10,000 dr/imp gal | 14,230.27171 gr/cup |
Reverse conversion: Grain per Cup to Dram per Imperial gallon
1.423027171 gr/cup × 0.7027272707 = 1 dr/imp gal
1.423027171 grains per cup = 1 drams per imperial gallon.
drams per imperial gallon = grains per cup × 0.702727270695
For a page dedicated to this direction, see Grain per Cup to Dram per Imperial gallon.
Understanding the Dram per Imperial gallon (dr/imp gal)
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 imperial gallon?
1 dram per imperial gallon equals 1.423027171 grains per cup, using the exact defined conversion factor rather than an estimate.
How do I convert dram per imperial gallon to grain per cup?
Multiply the dram per imperial gallon value by 1.423027171. The converter above does this instantly to whatever precision you set.
How do I convert grain per cup back to dram per imperial gallon?
Use the reverse factor: 1 grain per cup equals 0.7027272707 drams per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per imperial gallon?
Dram per Imperial gallon (dr/imp gal) 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 imperial gallon to grain per cup conversion exact?
Yes. Both dram per imperial gallon and grain per cup are defined by fixed standards rather than physical artifacts, so the factor of 1.423027171 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.