Mass per volume density.
Grains per Imperial gallon to Drams per Gallon Converter — gr/imp gal to dr/gal
Convert Grain per Imperial gallon (gr/imp gal) to Dram per Gallon (dr/gal) using the exact conversion factor (1 grain per imperial gallon = 0.0304520845 dram per gallon). See the formula, worked examples, and conversion table.
Grains per Imperial gallon to Drams per Gallon 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 0.01425376752 / 0.4680719817.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Imperial gallon to Drams per Gallon
Grain per Imperial gallon and Dram per Gallon 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 gallon = grains per imperial gallon × 0.0304520844664
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per imperial gallon equals 0.0142537675233 base units, and 1 dram per gallon equals 0.468071981707 base units, so dividing one by the other gives the direct grain per imperial gallon-to-dram per gallon factor of 0.0304520844664.
Simple example
1 gr/imp gal × 0.03045208447 = 0.0304520845 dr/gal
1 grain per imperial gallon = 0.0304520845 drams per gallon.
Real-world example
1,000 gr/imp gal × 0.03045208447 = 30.45208447 dr/gal
1,000 grains per imperial gallon = 30.45208447 drams per gallon.
Conversion table
| Grain per Imperial gallon (gr/imp gal) | Dram per Gallon (dr/gal) |
|---|---|
| 0.1 gr/imp gal | 0.0030452084 dr/gal |
| 1 gr/imp gal | 0.0304520845 dr/gal |
| 10 gr/imp gal | 0.3045208447 dr/gal |
| 100 gr/imp gal | 3.045208447 dr/gal |
| 1,000 gr/imp gal | 30.45208447 dr/gal |
| 10,000 gr/imp gal | 304.5208447 dr/gal |
Reverse conversion: Dram per Gallon to Grain per Imperial gallon
0.0304520845 dr/gal × 32.83847453 = 1.000000001 gr/imp gal
0.0304520845 drams per gallon = 1.000000001 grains per imperial gallon.
grains per imperial gallon = drams per gallon × 32.8384745255
For a page dedicated to this direction, see Dram per Gallon to Grain per Imperial gallon.
Understanding the Grain per Imperial gallon (gr/imp gal)
Mass per volume density.
Understanding the Dram per Gallon (dr/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per gallon are in 1 grain per imperial gallon?
1 grain per imperial gallon equals 0.0304520845 drams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per imperial gallon to dram per gallon?
Multiply the grain per imperial gallon value by 0.03045208447. The converter above does this instantly to whatever precision you set.
How do I convert dram per gallon back to grain per imperial gallon?
Use the reverse factor: 1 dram per gallon equals 32.83847453 grains per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per imperial gallon?
Grain per Imperial gallon (gr/imp gal) is a unit of density.
What is a dram per gallon?
Dram per Gallon (dr/gal) is a unit of density.
Is the grain per imperial gallon to dram per gallon conversion exact?
Yes. Both grain per imperial gallon and dram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.03045208447 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.