Mass concentration.
Milligrams per Fluid ounce to Micrograms per Liter Converter — mg/fl oz to ug/L
Convert Milligram per Fluid ounce (mg/fl oz) to Microgram per Liter (ug/L) using the exact conversion factor (1 milligram per fluid ounce = 33,814.0227 microgram per liter). See the formula, worked examples, and conversion table.
Milligrams per Fluid ounce to Micrograms per Liter converter
Converter
Chemistry Converter
Convert concentration, molarity, amount, and laboratory scientific units by compatible family.
Context values
Some unit families need one extra value for a physically accurate result.
Mass concentration.
Result = input x 0.0338140227 / 1e-6.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Fluid ounce to Micrograms per Liter
Milligram per Fluid ounce and Microgram per Liter both measure mass concentration — how much of a substance is dissolved or dispersed in a given volume — a core calculation for preparing lab solutions, checking water quality against a regulatory limit, or formulating a pharmaceutical dose. Both are mass concentration units.
Formula
micrograms per liter = milligrams per fluid ounce × 33814.0227018
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per fluid ounce equals 0.0338140227018 base units, and 1 microgram per liter equals 0.000001 base units, so dividing one by the other gives the direct milligram per fluid ounce-to-microgram per liter factor of 33814.0227018.
Simple example
1 mg/fl oz × 33814.0227 = 33,814.0227 ug/L
1 milligram per fluid ounce = 33,814.0227 micrograms per liter.
Real-world example
100 mg/fl oz × 33814.0227 = 3,381,402.27 ug/L
100 milligrams per fluid ounce = 3,381,402.27 micrograms per liter.
Conversion table
| Milligram per Fluid ounce (mg/fl oz) | Microgram per Liter (ug/L) |
|---|---|
| 0.001 mg/fl oz | 33.8140227 ug/L |
| 0.01 mg/fl oz | 338.140227 ug/L |
| 0.1 mg/fl oz | 3,381.40227 ug/L |
| 1 mg/fl oz | 33,814.0227 ug/L |
| 10 mg/fl oz | 338,140.227 ug/L |
| 100 mg/fl oz | 3,381,402.27 ug/L |
Reverse conversion: Microgram per Liter to Milligram per Fluid ounce
1 ug/L × 0.00002957352956 = 0.0000295735 mg/fl oz
1 microgram per liter = 0.0000295735 milligrams per fluid ounce.
milligrams per fluid ounce = micrograms per liter × 0.0000295735295625
For a page dedicated to this direction, see Microgram per Liter to Milligram per Fluid ounce.
Understanding the Milligram per Fluid ounce (mg/fl oz)
Mass concentration.
Understanding the Microgram per Liter (ug/L)
Mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per liter are in 1 milligram per fluid ounce?
1 milligram per fluid ounce equals 33,814.0227 micrograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per fluid ounce to microgram per liter?
Multiply the milligram per fluid ounce value by 33814.0227. The converter above does this instantly to whatever precision you set.
How do I convert microgram per liter back to milligram per fluid ounce?
Use the reverse factor: 1 microgram per liter equals 0.0000295735 milligrams per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per fluid ounce?
Milligram per Fluid ounce (mg/fl oz) is a unit of chemistry.
What is a microgram per liter?
Microgram per Liter (ug/L) is a unit of chemistry.
Is the milligram per fluid ounce to microgram per liter conversion exact?
Yes. Both milligram per fluid ounce and microgram per liter are defined by fixed standards rather than physical artifacts, so the factor of 33814.0227 used above is exact to as many digits as you choose to display.
What's the difference between mass concentration and molarity?
Mass concentration expresses how much mass of a substance is present per unit volume (for example, grams per liter). Molarity expresses the amount in moles per liter instead, which accounts for the substance's molecular weight. This category converts mass-concentration units.