Picomoles to Nanomoles Converter
Common Conversions
| pmol | nmol |
|---|---|
| 1 | 0.001 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
| 5000 | 5 |
| 10000 | 10 |
Why this conversion matters in chemistry
Internal-standard inventory tracking is where this gets practical. A targeted-proteomics run with 24 samples at 50 pmol per injection burns 1.2 nmol of internal standard total — and that's what gets watched against the 10 nmol stated on the vial label, so you know when to reorder before the campaign halts mid-run. The factor of 0.001 nmol per pmol is just the pico-to-nano step, which is to say: nothing chemically interesting, but the arithmetic that keeps a quant lab solvent in the dark about its own runway.
Formula
nmol = pmol / 1000
Worked Examples
1000 pmol = 1 nmol
About a typical synthetic-oligonucleotide order quantity.
100 pmol = 0.1 nmol
A typical PCR primer amount per reaction.
500 pmol = 0.5 nmol
About a typical receptor-binding radioligand amount.
10 pmol = 0.01 nmol
About a typical capillary-electrophoresis detection floor.
Frequently Asked Questions
How do I convert pmol to nmol?
Divide by 1000. The relationship is exact: 1 nmol = 1000 pmol. So 500 pmol becomes 0.5 nmol.
Why do molecular biologists use picomoles?
DNA oligonucleotides, primers, and probes are synthesized and used at the picomole scale. A standard 25 nmol DNA-synthesis order yields enough material for thousands of PCR reactions at 10–100 pmol each. Gene-expression studies often quantify transcript levels in the fmol–pmol range.
How do pmol relate to DNA mass?
For a 20-nucleotide ssDNA at ~6,600 g/mol, 1 pmol = 6.6 ng. For dsDNA, use 660 g/mol per base pair. The pmol-mass conversion depends on the molecular weight of the specific oligo.
What's the full mole prefix hierarchy?
mol → mmol (10⁻³) → µmol (10⁻⁶) → nmol (10⁻⁹) → pmol (10⁻¹²) → fmol (10⁻¹⁵) → amol (10⁻¹⁸) → zmol (10⁻²¹). Modern mass spectrometry routinely operates down to the amol level.