Mass per volume density.
Picograms per Gallon to Nanograms per Fluid ounce Converter — pg/gal to ng/fl oz
Convert Picogram per Gallon (pg/gal) to Nanogram per Fluid ounce (ng/fl oz) using the exact conversion factor (1 picogram per gallon = 0.0000078125 nanogram per fluid ounce). See the formula, worked examples, and conversion table.
Picograms per Gallon to Nanograms 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-13 / 3.38140227e-8.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Picograms per Gallon to Nanograms per Fluid ounce
Picogram per Gallon and Nanogram 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
nanograms per fluid ounce = picograms per gallon × 0.0000078125
This factor comes from each unit's defined relationship to the category's base unit: 1 picogram per gallon equals 2.641721e-13 base units, and 1 nanogram per fluid ounce equals 3.381402e-8 base units, so dividing one by the other gives the direct picogram per gallon-to-nanogram per fluid ounce factor of 0.0000078125.
Simple example
1 pg/gal × 0.0000078125 = 0.0000078125 ng/fl oz
1 picogram per gallon = 0.0000078125 nanograms per fluid ounce.
Real-world example
1,000 pg/gal × 0.0000078125 = 0.0078125 ng/fl oz
1,000 picograms per gallon = 0.0078125 nanograms per fluid ounce.
Conversion table
| Picogram per Gallon (pg/gal) | Nanogram per Fluid ounce (ng/fl oz) |
|---|---|
| 0.1 pg/gal | 7.8125e-7 ng/fl oz |
| 1 pg/gal | 0.0000078125 ng/fl oz |
| 10 pg/gal | 0.000078125 ng/fl oz |
| 100 pg/gal | 0.00078125 ng/fl oz |
| 1,000 pg/gal | 0.0078125 ng/fl oz |
| 10,000 pg/gal | 0.078125 ng/fl oz |
Reverse conversion: Nanogram per Fluid ounce to Picogram per Gallon
0.0000078125 ng/fl oz × 128000 = 1 pg/gal
0.0000078125 nanograms per fluid ounce = 1 picograms per gallon.
picograms per gallon = nanograms per fluid ounce × 128000
For a page dedicated to this direction, see Nanogram per Fluid ounce to Picogram per Gallon.
Understanding the Picogram per Gallon (pg/gal)
Mass per volume density.
Understanding the Nanogram per Fluid ounce (ng/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per fluid ounce are in 1 picogram per gallon?
1 picogram per gallon equals 0.0000078125 nanograms per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert picogram per gallon to nanogram per fluid ounce?
Multiply the picogram per gallon value by 0.0000078125. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per fluid ounce back to picogram per gallon?
Use the reverse factor: 1 nanogram per fluid ounce equals 128,000 picograms per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a picogram per gallon?
Picogram per Gallon (pg/gal) is a unit of density.
What is a nanogram per fluid ounce?
Nanogram per Fluid ounce (ng/fl oz) is a unit of density.
Is the picogram per gallon to nanogram per fluid ounce conversion exact?
Yes. Both picogram per gallon and nanogram per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.0000078125 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.