As we know One μmol/L is equal to 1000 nM (1 μmol/L = 1000 nM).

To convert Micromole/Liter to Nanomolar, multiply your μmol/L figure by 1000.

Example : convert 25 μmol/L to nM:

25 μmol/L = 25 × 1000 nM = nM

To convert Nanomolar to Micromole/Liter, divide your nM figure by 1000.

Example : convert 25 nM to μmol/L:

25 nM = 25 ÷ 1000 μmol/L = μmol/L