About This Calculator
This μg/mL to μM Calculator is a biochemical unit conversion tool that helps convert between mass concentration (micrograms per milliliter) and molar concentration (micromoles per liter).
Select a substance from the dropdown to auto-fill molar mass, or enter it manually if not listed.
How It Works
- Choose the conversion direction: μg/mL to μM or μM to μg/mL.
- Enter the input concentration value.
- Select or manually input the molar mass in g/mol.
- The calculator applies the appropriate formula and displays the result.
μM =
μg/mL × 1000Molar Mass (g/mol)
μg/mL = μM × Molar Mass ÷ 1000
Frequently Asked Questions
What is the difference between μg/mL and μM?
μg/mL is a mass concentration (weight per volume), while μM is a molar concentration (amount of substance per volume).
Why is molar mass required?
Molar mass links mass and amount, allowing conversion between units like μg/mL and μM.
Can I use custom substances?
Yes. If the compound is not listed, manually enter its molar mass in g/mol.
Is this tool suitable for biological experiments?
Absolutely. It's ideal for preparing buffer solutions, drug concentrations, enzyme dilutions, and more.
Are the results rounded?
Yes. Results are shown with 4 decimal places by default and full precision is also provided internally.