Mass concentration.
Micrograms per Fluid ounce to Milligrams per Milliliter Converter — ug/fl oz to mg/mL
Convert Microgram per Fluid ounce (ug/fl oz) to Milligram per Milliliter (mg/mL) using the exact conversion factor (1 microgram per fluid ounce = 0.000033814 milligram per milliliter). See the formula, worked examples, and conversion table.
Micrograms per Fluid ounce to Milligrams per Milliliter 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 3.38140227e-5 / 1.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Fluid ounce to Milligrams per Milliliter
Microgram per Fluid ounce and Milligram per Milliliter 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
milligrams per milliliter = micrograms per fluid ounce × 0.0000338140227018
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 milligram per milliliter equals 1 base unit, so dividing one by the other gives the direct microgram per fluid ounce-to-milligram per milliliter factor of 0.0000338140227018.
Simple example
1 ug/fl oz × 0.0000338140227 = 0.000033814 mg/mL
1 microgram per fluid ounce = 0.000033814 milligrams per milliliter.
Real-world example
100 ug/fl oz × 0.0000338140227 = 0.0033814023 mg/mL
100 micrograms per fluid ounce = 0.0033814023 milligrams per milliliter.
Conversion table
| Microgram per Fluid ounce (ug/fl oz) | Milligram per Milliliter (mg/mL) |
|---|---|
| 0.001 ug/fl oz | 3.381402e-8 mg/mL |
| 0.01 ug/fl oz | 3.381402e-7 mg/mL |
| 0.1 ug/fl oz | 0.0000033814 mg/mL |
| 1 ug/fl oz | 0.000033814 mg/mL |
| 10 ug/fl oz | 0.0003381402 mg/mL |
| 100 ug/fl oz | 0.0033814023 mg/mL |
Reverse conversion: Milligram per Milliliter to Microgram per Fluid ounce
0.000033814 mg/mL × 29573.52956 = 0.9999993286 ug/fl oz
0.000033814 milligrams per milliliter = 0.9999993286 micrograms per fluid ounce.
micrograms per fluid ounce = milligrams per milliliter × 29573.5295625
For a page dedicated to this direction, see Milligram per Milliliter to Microgram per Fluid ounce.
Understanding the Microgram per Fluid ounce (ug/fl oz)
Mass concentration.
Understanding the Milligram per Milliliter (mg/mL)
Mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per milliliter are in 1 microgram per fluid ounce?
1 microgram per fluid ounce equals 0.000033814 milligrams per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per fluid ounce to milligram per milliliter?
Multiply the microgram per fluid ounce value by 0.0000338140227. The converter above does this instantly to whatever precision you set.
How do I convert milligram per milliliter back to microgram per fluid ounce?
Use the reverse factor: 1 milligram per milliliter equals 29,573.52956 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 chemistry.
What is a milligram per milliliter?
Milligram per Milliliter (mg/mL) is a unit of chemistry.
Is the microgram per fluid ounce to milligram per milliliter conversion exact?
Yes. Both microgram per fluid ounce and milligram per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.0000338140227 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.