Mass concentration.
Milligrams per Milliliter to Micrograms per Liter Converter — mg/mL to ug/L
Convert Milligram per Milliliter (mg/mL) to Microgram per Liter (ug/L) using the exact conversion factor (1 milligram per milliliter = 1,000,000 microgram per liter). See the formula, worked examples, and conversion table.
Milligrams per Milliliter 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 1 / 1e-6.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Milliliter to Micrograms per Liter
Milligram per Milliliter 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 milliliter × 1000000
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per milliliter equals 1 base unit, and 1 microgram per liter equals 0.000001 base units, so dividing one by the other gives the direct milligram per milliliter-to-microgram per liter factor of 1000000.
Simple example
1 mg/mL × 1000000 = 1,000,000 ug/L
1 milligram per milliliter = 1,000,000 micrograms per liter.
Real-world example
100 mg/mL × 1000000 = 100,000,000 ug/L
100 milligrams per milliliter = 100,000,000 micrograms per liter.
Conversion table
| Milligram per Milliliter (mg/mL) | Microgram per Liter (ug/L) |
|---|---|
| 0.001 mg/mL | 1,000 ug/L |
| 0.01 mg/mL | 10,000 ug/L |
| 0.1 mg/mL | 100,000 ug/L |
| 1 mg/mL | 1,000,000 ug/L |
| 10 mg/mL | 10,000,000 ug/L |
| 100 mg/mL | 100,000,000 ug/L |
Reverse conversion: Microgram per Liter to Milligram per Milliliter
1 ug/L × 0.000001 = 0.000001 mg/mL
1 microgram per liter = 0.000001 milligrams per milliliter.
milligrams per milliliter = micrograms per liter × 0.000001
For a page dedicated to this direction, see Microgram per Liter to Milligram per Milliliter.
Understanding the Milligram per Milliliter (mg/mL)
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 milliliter?
1 milligram per milliliter equals 1,000,000 micrograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per milliliter to microgram per liter?
Multiply the milligram per milliliter value by 1000000. The converter above does this instantly to whatever precision you set.
How do I convert microgram per liter back to milligram per milliliter?
Use the reverse factor: 1 microgram per liter equals 0.000001 milligrams per milliliter. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per milliliter?
Milligram per Milliliter (mg/mL) 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 milliliter to microgram per liter conversion exact?
Yes. Both milligram per milliliter and microgram per liter are defined by fixed standards rather than physical artifacts, so the factor of 1000000 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.