Micromolar to Picomolar Converter

µM

Common Conversions

µM	pM
0.000001	1
0.00001	10
0.0001	100
0.001	1000
0.01	10000
0.1	100000
1	1000000
5	5000000
10	10000000
100	100000000
1000	1000000000
10000	10000000000

Why this conversion matters in chemistry

Micromolar and picomolar sit a factor of a million apart, which means this conversion almost never gets used in one calculation — it shows up when two different stages of a project have to be compared. An early screening hit at 2 µM IC50 looks respectable; an optimized candidate at 200 pM is roughly ten thousand times more potent, and writing both in the same unit makes that gap legible. The arithmetic is trivial (µM × 10⁶ = pM), but the mental move is non-trivial: most of the interesting chemistry happens in the middle of the scale, and the ends exist mainly so you can talk sensibly about very tight binding or very dilute detection.

Formula

pM = µM × 10⁶

Worked Examples

1 µM = 1,000,000 pM

The anchor conversion. A million picomolar in one micromolar is worth internalizing.

0.001 µM = 1000 pM

One nanomolar, written the long way. Useful when comparing a working plate concentration against a binding-affinity reference in pM.

0.000001 µM = 1 pM

A single picomolar. Well below what most bench assays can directly measure without careful method work.

10 µM = 10,000,000 pM

A ten-micromolar screening concentration, expressed at the scale of a detection-limit reference.

Frequently Asked Questions

How do I convert µM to pM?

Multiply by 10⁶. So 0.001 µM becomes 1000 pM, and 1 µM becomes 1,000,000 pM. The factor of a million comes from the two SI prefixes being three orders apart each way (µ is 10⁻⁶, p is 10⁻¹²), so the gap between them is 10⁶.

When does this conversion actually come up?

Mostly when comparing two endpoints of a project in the same unit — an early screening hit in µM versus an optimized compound's Kd in pM, for instance. Direct µM-to-pM dilution in a single step is unusual; the numbers tend to get there via a chain of thousand-fold dilutions through nM.

What's the full prefix ladder?

M (mol/L) → mM (10⁻³) → µM (10⁻⁶) → nM (10⁻⁹) → pM (10⁻¹²) → fM (10⁻¹⁵). Each step is a factor of 1000. Most benchwork lives in the mM to nM band; the ends show up in trace analysis or very high-affinity binding work.