Mass per volume density.
Micrograms per Liter to Drams per Fluid ounce Converter — ug/L to dr/fl oz
Convert Microgram per Liter (ug/L) to Dram per Fluid ounce (dr/fl oz) using the exact conversion factor (1 microgram per liter = 1.669081e-8 dram per fluid ounce). See the formula, worked examples, and conversion table.
Micrograms per Liter to Drams 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 / 59.91321366.
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 Drams per Fluid ounce
Microgram per Liter and Dram 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
drams per fluid ounce = micrograms per liter × 1.669081e-8
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 dram per fluid ounce equals 59.9132136584 base units, so dividing one by the other gives the direct microgram per liter-to-dram per fluid ounce factor of 1.669081e-8.
Simple example
1 ug/L × 1.669081e-8 = 1.669081e-8 dr/fl oz
1 microgram per liter = 1.669081e-8 drams per fluid ounce.
Real-world example
1,000 ug/L × 1.669081e-8 = 0.0000166908 dr/fl oz
1,000 micrograms per liter = 0.0000166908 drams per fluid ounce.
Conversion table
| Microgram per Liter (ug/L) | Dram per Fluid ounce (dr/fl oz) |
|---|---|
| 0.1 ug/L | 1.669081e-9 dr/fl oz |
| 1 ug/L | 1.669081e-8 dr/fl oz |
| 10 ug/L | 1.669081e-7 dr/fl oz |
| 100 ug/L | 0.0000016691 dr/fl oz |
| 1,000 ug/L | 0.0000166908 dr/fl oz |
| 10,000 ug/L | 0.0001669081 dr/fl oz |
Reverse conversion: Dram per Fluid ounce to Microgram per Liter
1.669081e-8 dr/fl oz × 59913213.66 = 1.000000066 ug/L
1.669081e-8 drams per fluid ounce = 1.000000066 micrograms per liter.
micrograms per liter = drams per fluid ounce × 59913213.6584
For a page dedicated to this direction, see Dram per Fluid ounce to Microgram per Liter.
Understanding the Microgram per Liter (ug/L)
Mass per volume density.
Understanding the Dram per Fluid ounce (dr/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per fluid ounce are in 1 microgram per liter?
1 microgram per liter equals 1.669081e-8 drams per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per liter to dram per fluid ounce?
Multiply the microgram per liter value by 1.669081e-8. The converter above does this instantly to whatever precision you set.
How do I convert dram per fluid ounce back to microgram per liter?
Use the reverse factor: 1 dram per fluid ounce equals 59,913,213.66 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 dram per fluid ounce?
Dram per Fluid ounce (dr/fl oz) is a unit of density.
Is the microgram per liter to dram per fluid ounce conversion exact?
Yes. Both microgram per liter and dram per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 1.669081e-8 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.