Mass per volume density.
Nanograms per Fluid ounce to Micrograms per Gallon Converter — ng/fl oz to ug/gal
Convert Nanogram per Fluid ounce (ng/fl oz) to Microgram per Gallon (ug/gal) using the exact conversion factor (1 nanogram per fluid ounce = 0.128 microgram per gallon). See the formula, worked examples, and conversion table.
Nanograms 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 3.38140227e-8 / 2.64172052e-7.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Nanograms per Fluid ounce to Micrograms per Gallon
Nanogram 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 = nanograms per fluid ounce × 0.128
This factor comes from each unit's defined relationship to the category's base unit: 1 nanogram per fluid ounce equals 3.381402e-8 base units, and 1 microgram per gallon equals 2.641721e-7 base units, so dividing one by the other gives the direct nanogram per fluid ounce-to-microgram per gallon factor of 0.128.
Simple example
1 ng/fl oz × 0.128 = 0.128 ug/gal
1 nanogram per fluid ounce = 0.128 micrograms per gallon.
Real-world example
1,000 ng/fl oz × 0.128 = 128 ug/gal
1,000 nanograms per fluid ounce = 128 micrograms per gallon.
Conversion table
| Nanogram per Fluid ounce (ng/fl oz) | Microgram per Gallon (ug/gal) |
|---|---|
| 0.1 ng/fl oz | 0.0128 ug/gal |
| 1 ng/fl oz | 0.128 ug/gal |
| 10 ng/fl oz | 1.28 ug/gal |
| 100 ng/fl oz | 12.8 ug/gal |
| 1,000 ng/fl oz | 128 ug/gal |
| 10,000 ng/fl oz | 1,280 ug/gal |
Reverse conversion: Microgram per Gallon to Nanogram per Fluid ounce
0.128 ug/gal × 7.8125 = 1 ng/fl oz
0.128 micrograms per gallon = 1 nanogram per fluid ounce.
nanograms per fluid ounce = micrograms per gallon × 7.8125
For a page dedicated to this direction, see Microgram per Gallon to Nanogram per Fluid ounce.
Understanding the Nanogram per Fluid ounce (ng/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 nanogram per fluid ounce?
1 nanogram per fluid ounce equals 0.128 micrograms per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert nanogram per fluid ounce to microgram per gallon?
Multiply the nanogram per fluid ounce value by 0.128. The converter above does this instantly to whatever precision you set.
How do I convert microgram per gallon back to nanogram per fluid ounce?
Use the reverse factor: 1 microgram per gallon equals 7.8125 nanograms per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanogram per fluid ounce?
Nanogram per Fluid ounce (ng/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 nanogram per fluid ounce to microgram per gallon conversion exact?
Yes. Both nanogram per fluid ounce and microgram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.128 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.