Mass per volume density.
Micrograms per Gallon to Drams per Gallon Converter — ug/gal to dr/gal
Convert Microgram per Gallon (ug/gal) to Dram per Gallon (dr/gal) using the exact conversion factor (1 microgram per gallon = 5.643834e-7 dram per gallon). See the formula, worked examples, and conversion table.
Micrograms per 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 2.64172052e-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 Gallon to Drams per Gallon
Microgram per 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 gallon × 5.643834e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per gallon equals 2.641721e-7 base units, and 1 dram per gallon equals 0.468071981707 base units, so dividing one by the other gives the direct microgram per gallon-to-dram per gallon factor of 5.643834e-7.
Simple example
1 ug/gal × 5.643834e-7 = 5.643834e-7 dr/gal
1 microgram per gallon = 5.643834e-7 drams per gallon.
Real-world example
1,000 ug/gal × 5.643834e-7 = 0.0005643834 dr/gal
1,000 micrograms per gallon = 0.0005643834 drams per gallon.
Conversion table
| Microgram per Gallon (ug/gal) | Dram per Gallon (dr/gal) |
|---|---|
| 0.1 ug/gal | 5.643834e-8 dr/gal |
| 1 ug/gal | 5.643834e-7 dr/gal |
| 10 ug/gal | 0.0000056438 dr/gal |
| 100 ug/gal | 0.0000564383 dr/gal |
| 1,000 ug/gal | 0.0005643834 dr/gal |
| 10,000 ug/gal | 0.0056438339 dr/gal |
Reverse conversion: Dram per Gallon to Microgram per Gallon
5.643834e-7 dr/gal × 1771845.195 = 1.000000016 ug/gal
5.643834e-7 drams per gallon = 1.000000016 micrograms per gallon.
micrograms per gallon = drams per gallon × 1771845.19531
For a page dedicated to this direction, see Dram per Gallon to Microgram per Gallon.
Understanding the Microgram per Gallon (ug/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 gallon?
1 microgram per gallon equals 5.643834e-7 drams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per gallon to dram per gallon?
Multiply the microgram per gallon value by 5.643834e-7. The converter above does this instantly to whatever precision you set.
How do I convert dram per gallon back to microgram per gallon?
Use the reverse factor: 1 dram per gallon equals 1,771,845.195 micrograms per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per gallon?
Microgram per Gallon (ug/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 gallon to dram per gallon conversion exact?
Yes. Both microgram per gallon and dram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 5.643834e-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.