Mass concentration.
Milligrams per Fluid ounce to Micrograms per Microliter Converter — mg/fl oz to ug/uL
Convert Milligram per Fluid ounce (mg/fl oz) to Microgram per Microliter (ug/uL) using the exact conversion factor (1 milligram per fluid ounce = 0.0338140227 microgram per microliter). See the formula, worked examples, and conversion table.
Milligrams per Fluid ounce to Micrograms per Microliter 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 / 1.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Fluid ounce to Micrograms per Microliter
Milligram per Fluid ounce and Microgram per Microliter 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 microliter = milligrams per fluid ounce × 0.0338140227018
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 microliter equals 1 base unit, so dividing one by the other gives the direct milligram per fluid ounce-to-microgram per microliter factor of 0.0338140227018.
Simple example
1 mg/fl oz × 0.0338140227 = 0.0338140227 ug/uL
1 milligram per fluid ounce = 0.0338140227 micrograms per microliter.
Real-world example
100 mg/fl oz × 0.0338140227 = 3.38140227 ug/uL
100 milligrams per fluid ounce = 3.38140227 micrograms per microliter.
Conversion table
| Milligram per Fluid ounce (mg/fl oz) | Microgram per Microliter (ug/uL) |
|---|---|
| 0.001 mg/fl oz | 0.000033814 ug/uL |
| 0.01 mg/fl oz | 0.0003381402 ug/uL |
| 0.1 mg/fl oz | 0.0033814023 ug/uL |
| 1 mg/fl oz | 0.0338140227 ug/uL |
| 10 mg/fl oz | 0.338140227 ug/uL |
| 100 mg/fl oz | 3.38140227 ug/uL |
Reverse conversion: Microgram per Microliter to Milligram per Fluid ounce
0.0338140227 ug/uL × 29.57352956 = 0.9999999999 mg/fl oz
0.0338140227 micrograms per microliter = 0.9999999999 milligrams per fluid ounce.
milligrams per fluid ounce = micrograms per microliter × 29.5735295625
For a page dedicated to this direction, see Microgram per Microliter to Milligram per Fluid ounce.
Understanding the Milligram per Fluid ounce (mg/fl oz)
Mass concentration.
Understanding the Microgram per Microliter (ug/uL)
Mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per microliter are in 1 milligram per fluid ounce?
1 milligram per fluid ounce equals 0.0338140227 micrograms per microliter, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per fluid ounce to microgram per microliter?
Multiply the milligram per fluid ounce value by 0.0338140227. The converter above does this instantly to whatever precision you set.
How do I convert microgram per microliter back to milligram per fluid ounce?
Use the reverse factor: 1 microgram per microliter equals 29.57352956 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 microliter?
Microgram per Microliter (ug/uL) is a unit of chemistry.
Is the milligram per fluid ounce to microgram per microliter conversion exact?
Yes. Both milligram per fluid ounce and microgram per microliter are defined by fixed standards rather than physical artifacts, so the factor of 0.0338140227 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.