Mass per volume density.
Micrograms per Gallon to Micrograms per Fluid ounce Converter — ug/gal to ug/fl oz
Convert Microgram per Gallon (ug/gal) to Microgram per Fluid ounce (ug/fl oz) using the exact conversion factor (1 microgram per gallon = 0.0078125 microgram per fluid ounce). See the formula, worked examples, and conversion table.
Micrograms per Gallon to Micrograms per Fluid ounce 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 / 3.38140227e-5.
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 Micrograms per Fluid ounce
Microgram per Gallon and Microgram per Fluid ounce 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 fluid ounce = micrograms per gallon × 0.0078125
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 microgram per fluid ounce equals 0.0000338140227018 base units, so dividing one by the other gives the direct microgram per gallon-to-microgram per fluid ounce factor of 0.0078125.
Simple example
1 ug/gal × 0.0078125 = 0.0078125 ug/fl oz
1 microgram per gallon = 0.0078125 micrograms per fluid ounce.
Real-world example
1,000 ug/gal × 0.0078125 = 7.8125 ug/fl oz
1,000 micrograms per gallon = 7.8125 micrograms per fluid ounce.
Conversion table
| Microgram per Gallon (ug/gal) | Microgram per Fluid ounce (ug/fl oz) |
|---|---|
| 0.1 ug/gal | 0.00078125 ug/fl oz |
| 1 ug/gal | 0.0078125 ug/fl oz |
| 10 ug/gal | 0.078125 ug/fl oz |
| 100 ug/gal | 0.78125 ug/fl oz |
| 1,000 ug/gal | 7.8125 ug/fl oz |
| 10,000 ug/gal | 78.125 ug/fl oz |
Reverse conversion: Microgram per Fluid ounce to Microgram per Gallon
0.0078125 ug/fl oz × 128 = 1 ug/gal
0.0078125 micrograms per fluid ounce = 1 microgram per gallon.
micrograms per gallon = micrograms per fluid ounce × 128
For a page dedicated to this direction, see Microgram per Fluid ounce to Microgram per Gallon.
Understanding the Microgram per Gallon (ug/gal)
Mass per volume density.
Understanding the Microgram per Fluid ounce (ug/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per fluid ounce are in 1 microgram per gallon?
1 microgram per gallon equals 0.0078125 micrograms per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per gallon to microgram per fluid ounce?
Multiply the microgram per gallon value by 0.0078125. The converter above does this instantly to whatever precision you set.
How do I convert microgram per fluid ounce back to microgram per gallon?
Use the reverse factor: 1 microgram per fluid ounce equals 128 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 microgram per fluid ounce?
Microgram per Fluid ounce (ug/fl oz) is a unit of density.
Is the microgram per gallon to microgram per fluid ounce conversion exact?
Yes. Both microgram per gallon and microgram per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.0078125 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.