Mass per volume density.
Micrograms per Fluid ounce to Nanograms per Milliliter Converter — ug/fl oz to ng/mL
Convert Microgram per Fluid ounce (ug/fl oz) to Nanogram per Milliliter (ng/mL) using the exact conversion factor (1 microgram per fluid ounce = 33.8140227 nanogram per milliliter). See the formula, worked examples, and conversion table.
Micrograms per Fluid ounce to Nanograms per Milliliter 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-5 / 1e-6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Fluid ounce to Nanograms per Milliliter
Microgram per Fluid ounce and Nanogram per Milliliter 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 milliliter = micrograms per fluid ounce × 33.8140227018
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per fluid ounce equals 0.0000338140227018 base units, and 1 nanogram per milliliter equals 0.000001 base units, so dividing one by the other gives the direct microgram per fluid ounce-to-nanogram per milliliter factor of 33.8140227018.
Simple example
1 ug/fl oz × 33.8140227 = 33.8140227 ng/mL
1 microgram per fluid ounce = 33.8140227 nanograms per milliliter.
Real-world example
1,000 ug/fl oz × 33.8140227 = 33,814.0227 ng/mL
1,000 micrograms per fluid ounce = 33,814.0227 nanograms per milliliter.
Conversion table
| Microgram per Fluid ounce (ug/fl oz) | Nanogram per Milliliter (ng/mL) |
|---|---|
| 0.1 ug/fl oz | 3.38140227 ng/mL |
| 1 ug/fl oz | 33.8140227 ng/mL |
| 10 ug/fl oz | 338.140227 ng/mL |
| 100 ug/fl oz | 3,381.40227 ng/mL |
| 1,000 ug/fl oz | 33,814.0227 ng/mL |
| 10,000 ug/fl oz | 338,140.227 ng/mL |
Reverse conversion: Nanogram per Milliliter to Microgram per Fluid ounce
33.8140227 ng/mL × 0.02957352956 = 0.9999999999 ug/fl oz
33.8140227 nanograms per milliliter = 0.9999999999 micrograms per fluid ounce.
micrograms per fluid ounce = nanograms per milliliter × 0.0295735295625
For a page dedicated to this direction, see Nanogram per Milliliter to Microgram per Fluid ounce.
Understanding the Microgram per Fluid ounce (ug/fl oz)
Mass per volume density.
Understanding the Nanogram per Milliliter (ng/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per milliliter are in 1 microgram per fluid ounce?
1 microgram per fluid ounce equals 33.8140227 nanograms per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per fluid ounce to nanogram per milliliter?
Multiply the microgram per fluid ounce value by 33.8140227. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per milliliter back to microgram per fluid ounce?
Use the reverse factor: 1 nanogram per milliliter equals 0.0295735296 micrograms per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per fluid ounce?
Microgram per Fluid ounce (ug/fl oz) is a unit of density.
What is a nanogram per milliliter?
Nanogram per Milliliter (ng/mL) is a unit of density.
Is the microgram per fluid ounce to nanogram per milliliter conversion exact?
Yes. Both microgram per fluid ounce and nanogram per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 33.8140227 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.