Mass per volume density.
Milligrams per Fluid ounce to Micrograms per Gallon Converter — mg/fl oz to ug/gal
Convert Milligram per Fluid ounce (mg/fl oz) to Microgram per Gallon (ug/gal) using the exact conversion factor (1 milligram per fluid ounce = 128,000 microgram per gallon). See the formula, worked examples, and conversion table.
Milligrams per Fluid ounce to Micrograms 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 0.0338140227 / 2.64172052e-7.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Fluid ounce to Micrograms per Gallon
Milligram per Fluid ounce and Microgram 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
micrograms per gallon = milligrams per fluid ounce × 128000
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per fluid ounce equals 0.0338140227018 base units, and 1 microgram per gallon equals 2.641721e-7 base units, so dividing one by the other gives the direct milligram per fluid ounce-to-microgram per gallon factor of 128000.
Simple example
1 mg/fl oz × 128000 = 128,000 ug/gal
1 milligram per fluid ounce = 128,000 micrograms per gallon.
Real-world example
1,000 mg/fl oz × 128000 = 128,000,000 ug/gal
1,000 milligrams per fluid ounce = 128,000,000 micrograms per gallon.
Conversion table
| Milligram per Fluid ounce (mg/fl oz) | Microgram per Gallon (ug/gal) |
|---|---|
| 0.1 mg/fl oz | 12,800 ug/gal |
| 1 mg/fl oz | 128,000 ug/gal |
| 10 mg/fl oz | 1,280,000 ug/gal |
| 100 mg/fl oz | 12,800,000 ug/gal |
| 1,000 mg/fl oz | 128,000,000 ug/gal |
| 10,000 mg/fl oz | 1,280,000,000 ug/gal |
Reverse conversion: Microgram per Gallon to Milligram per Fluid ounce
1 ug/gal × 0.0000078125 = 0.0000078125 mg/fl oz
1 microgram per gallon = 0.0000078125 milligrams per fluid ounce.
milligrams per fluid ounce = micrograms per gallon × 0.0000078125
For a page dedicated to this direction, see Microgram per Gallon to Milligram per Fluid ounce.
Understanding the Milligram per Fluid ounce (mg/fl oz)
Mass per volume density.
Understanding the Microgram per Gallon (ug/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per gallon are in 1 milligram per fluid ounce?
1 milligram per fluid ounce equals 128,000 micrograms per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per fluid ounce to microgram per gallon?
Multiply the milligram per fluid ounce value by 128000. The converter above does this instantly to whatever precision you set.
How do I convert microgram per gallon back to milligram per fluid ounce?
Use the reverse factor: 1 microgram per gallon equals 0.0000078125 milligrams per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per fluid ounce?
Milligram per Fluid ounce (mg/fl oz) is a unit of density.
What is a microgram per gallon?
Microgram per Gallon (ug/gal) is a unit of density.
Is the milligram per fluid ounce to microgram per gallon conversion exact?
Yes. Both milligram per fluid ounce and microgram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 128000 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.