Convert micromolars to millimolars
1 µM = 0.001 mM — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.001mM
As a fraction: 1/1000
1 µM = 0.001 mM
How to convert micromolars to millimolars
Multiply the number of micromolars by 0.001 to get millimolars.
The exact factor is 0.001 — as a fraction, 1/1000.
Micromolar to Millimolar conversion table
| Micromolars (µM) | Millimolars (mM) |
|---|---|
| 1 µM | 0.001 |
| 2 µM | 0.002 |
| 3 µM | 0.003 |
| 5 µM | 0.005 |
| 10 µM | 0.01 |
| 20 µM | 0.02 |
| 25 µM | 0.025 |
| 50 µM | 0.05 |
| 100 µM | 0.1 |
| 250 µM | 0.25 |
| 500 µM | 0.5 |
| 1000 µM | 1 |
Millimolar to Micromolar conversion table
| Millimolars (mM) | Micromolars (µM) |
|---|---|
| 1 mM | 1000 |
| 2 mM | 2000 |
| 3 mM | 3000 |
| 5 mM | 5000 |
| 10 mM | 10 000 |
| 20 mM | 20 000 |
| 25 mM | 25 000 |
| 50 mM | 50 000 |
| 100 mM | 100 000 |
| 250 mM | 250 000 |
| 500 mM | 500 000 |
| 1000 mM | 1 000 000 |
Frequently asked
How many millimolars are in a micromolar?
One micromolar equals 0.001 millimolars (µM → mM). That figure is exact, not rounded.
How do you convert micromolars to millimolars?
Multiply the number of micromolars by 0.001 to get millimolars.
What is 1 mM in micromolars?
One millimolar is 1000 micromolars.
What is 10 µM in mM?
10 µM = 0.01 mM.