Molar to Picomolar Converter
Common Conversions
| M | pM |
|---|---|
| 1e-12 | 1 |
| 1e-11 | 10 |
| 1e-10 | 100 |
| 1e-9 | 1000 |
| 0.000001 | 1000000 |
| 0.001 | 1000000000 |
| 0.01 | 10000000000 |
| 0.1 | 100000000000 |
| 1 | 1000000000000 |
| 10 | 10000000000000 |
| 100 | 100000000000000 |
| 1000 | 1000000000000000 |
Why this conversion matters in chemistry
No bench dilution actually crosses from molar to picomolar in one step — you work down through mM, µM, and nM, losing volume-based precision at each stage. The conversion matters mainly as a unit-alignment check: when a paper quotes a Kd in pM and you need to line it up against a reagent stock labeled in M, multiplying by 10¹² gets you there. A 1 pM Kd means the ligand saturates its target at extraordinarily low concentrations; a handful of optimized therapeutic antibodies reach the low-pM range, and the tightest known biological interactions like biotin–streptavidin are even tighter, down in the femtomolar range. The arithmetic is reading across scales, not preparing a solution.
Formula
Worked Examples
A trillion picomolar in a single molar. A number that's larger than it's useful to write out in full.
The definitional equivalence. Picomolar is just 10⁻¹² molar with a friendlier unit name.
A standard 1 mM stock expressed at the tight-binding scale. Most benchwork dilutes from here, not from full molar.
One micromolar — where most enzyme and cellular assays live. The starting point for most dilutions into the sub-nM range.