Calculate mg/mL from ug/uL instantly, plus the total mass in a volume, the volume needed for a target mass, and the stock and diluent amounts for a dilution.

1 µg/µL equals exactly 1 mg/mL. Pick a mode to also solve for mass, volume, or a dilution.

Enter the number and the unit it is currently in.

+ Add molecular weight (show molarity)

µg/µL to mg/mL Formula

The following relationship is used to convert micrograms per microliter to milligrams per milliliter.

mg / mL = µg / µL

This works because:

  • 1 mg = 1000 µg
  • 1 mL = 1000 µL
  • The factor of 1000 in the numerator and denominator cancels out

So, to convert from µg/µL to mg/mL, you simply keep the same numeric value and change the units.

What is a µg/µL to mg/mL Conversion?

A µg/µL to mg/mL conversion is a concentration unit conversion between two equivalent mass-per-volume expressions. Micrograms per microliter and milligrams per milliliter represent the same ratio because both the mass unit and the volume unit differ by the same factor of 1000. As a result, the numerical value does not change when converting between these units.

How to Convert µg/µL to mg/mL?

The following steps outline how to convert µg/µL to mg/mL.

  1. First, determine the concentration in µg/µL.
  2. Next, recognize that 1 mg = 1000 µg and 1 mL = 1000 µL.
  3. Because both the numerator and denominator scale by 1000, the numeric value remains unchanged.
  4. Write the same number with units of mg/mL.
  5. Check your answer using the calculator above.

µg/µL to mg/mL Conversion Table

The table below shows several common examples of concentrations in µg/µL and their equivalent values in mg/mL.

Concentration in µg/µL Equivalent in mg/mL
0.1 µg/µL 0.1 mg/mL
0.5 µg/µL 0.5 mg/mL
1 µg/µL 1 mg/mL
5 µg/µL 5 mg/mL
10 µg/µL 10 mg/mL
25 µg/µL 25 mg/mL
100 µg/µL 100 mg/mL

In practice, this means that a concentration written in µg/µL can be directly rewritten in mg/mL without changing the number. This makes the conversion especially convenient in laboratory, chemistry, and biology settings.

Example Problem: 

Use the following values as an example problem to test your knowledge.

Concentration = 10 µg/µL

Equivalent Concentration = 10 mg/mL