Mass per volume density.
Micrograms per Imperial gallon to Drams per Gallon Converter — ug/imp gal to dr/gal
Convert Microgram per Imperial gallon (ug/imp gal) to Dram per Gallon (dr/gal) using the exact conversion factor (1 microgram per imperial gallon = 4.699475e-7 dram per gallon). See the formula, worked examples, and conversion table.
Micrograms 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 2.19969248e-7 / 0.4680719817.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Imperial gallon to Drams per Gallon
Microgram 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 = micrograms per imperial gallon × 4.699475e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per imperial gallon equals 2.199692e-7 base units, and 1 dram per gallon equals 0.468071981707 base units, so dividing one by the other gives the direct microgram per imperial gallon-to-dram per gallon factor of 4.699475e-7.
Simple example
1 ug/imp gal × 4.699475e-7 = 4.699475e-7 dr/gal
1 microgram per imperial gallon = 4.699475e-7 drams per gallon.
Real-world example
1,000 ug/imp gal × 4.699475e-7 = 0.0004699475 dr/gal
1,000 micrograms per imperial gallon = 0.0004699475 drams per gallon.
Conversion table
| Microgram per Imperial gallon (ug/imp gal) | Dram per Gallon (dr/gal) |
|---|---|
| 0.1 ug/imp gal | 4.699475e-8 dr/gal |
| 1 ug/imp gal | 4.699475e-7 dr/gal |
| 10 ug/imp gal | 0.0000046995 dr/gal |
| 100 ug/imp gal | 0.0000469947 dr/gal |
| 1,000 ug/imp gal | 0.0004699475 dr/gal |
| 10,000 ug/imp gal | 0.0046994748 dr/gal |
Reverse conversion: Dram per Gallon to Microgram per Imperial gallon
4.699475e-7 dr/gal × 2127897.355 = 1.000000042 ug/imp gal
4.699475e-7 drams per gallon = 1.000000042 micrograms per imperial gallon.
micrograms per imperial gallon = drams per gallon × 2127897.35532
For a page dedicated to this direction, see Dram per Gallon to Microgram per Imperial gallon.
Understanding the Microgram per Imperial gallon (ug/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 microgram per imperial gallon?
1 microgram per imperial gallon equals 4.699475e-7 drams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per imperial gallon to dram per gallon?
Multiply the microgram per imperial gallon value by 4.699475e-7. The converter above does this instantly to whatever precision you set.
How do I convert dram per gallon back to microgram per imperial gallon?
Use the reverse factor: 1 dram per gallon equals 2,127,897.355 micrograms per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per imperial gallon?
Microgram per Imperial gallon (ug/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 microgram per imperial gallon to dram per gallon conversion exact?
Yes. Both microgram per imperial gallon and dram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 4.699475e-7 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.