Mass per volume density.
Micrograms per Liter to Milligrams per Fluid ounce Converter — ug/L to mg/fl oz
Convert Microgram per Liter (ug/L) to Milligram per Fluid ounce (mg/fl oz) using the exact conversion factor (1 microgram per liter = 0.0000295735 milligram per fluid ounce). See the formula, worked examples, and conversion table.
Micrograms per Liter to Milligrams 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 1e-6 / 0.0338140227.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Liter to Milligrams per Fluid ounce
Microgram per Liter and Milligram 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
milligrams per fluid ounce = micrograms per liter × 0.0000295735295625
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per liter equals 0.000001 base units, and 1 milligram per fluid ounce equals 0.0338140227018 base units, so dividing one by the other gives the direct microgram per liter-to-milligram per fluid ounce factor of 0.0000295735295625.
Simple example
1 ug/L × 0.00002957352956 = 0.0000295735 mg/fl oz
1 microgram per liter = 0.0000295735 milligrams per fluid ounce.
Real-world example
1,000 ug/L × 0.00002957352956 = 0.0295735296 mg/fl oz
1,000 micrograms per liter = 0.0295735296 milligrams per fluid ounce.
Conversion table
| Microgram per Liter (ug/L) | Milligram per Fluid ounce (mg/fl oz) |
|---|---|
| 0.1 ug/L | 0.0000029574 mg/fl oz |
| 1 ug/L | 0.0000295735 mg/fl oz |
| 10 ug/L | 0.0002957353 mg/fl oz |
| 100 ug/L | 0.002957353 mg/fl oz |
| 1,000 ug/L | 0.0295735296 mg/fl oz |
| 10,000 ug/L | 0.2957352956 mg/fl oz |
Reverse conversion: Milligram per Fluid ounce to Microgram per Liter
0.0000295735 mg/fl oz × 33814.0227 = 0.9999990004 ug/L
0.0000295735 milligrams per fluid ounce = 0.9999990004 micrograms per liter.
micrograms per liter = milligrams per fluid ounce × 33814.0227018
For a page dedicated to this direction, see Milligram per Fluid ounce to Microgram per Liter.
Understanding the Microgram per Liter (ug/L)
Mass per volume density.
Understanding the Milligram per Fluid ounce (mg/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per fluid ounce are in 1 microgram per liter?
1 microgram per liter equals 0.0000295735 milligrams per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per liter to milligram per fluid ounce?
Multiply the microgram per liter value by 0.00002957352956. The converter above does this instantly to whatever precision you set.
How do I convert milligram per fluid ounce back to microgram per liter?
Use the reverse factor: 1 milligram per fluid ounce equals 33,814.0227 micrograms per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per liter?
Microgram per Liter (ug/L) is a unit of density.
What is a milligram per fluid ounce?
Milligram per Fluid ounce (mg/fl oz) is a unit of density.
Is the microgram per liter to milligram per fluid ounce conversion exact?
Yes. Both microgram per liter and milligram per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.00002957352956 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.