Micromoles to Femtomoles Converter
Common Conversions
| µmol | fmol |
|---|---|
| 1e-9 | 1 |
| 1e-8 | 10 |
| 1e-7 | 100 |
| 0.000001 | 1000 |
| 0.00001 | 10000 |
| 0.0001 | 100000 |
| 0.001 | 1000000 |
| 0.01 | 10000000 |
| 0.1 | 100000000 |
| 1 | 1000000000 |
| 10 | 10000000000 |
| 1000 | 1000000000000 |
Why this conversion matters in chemistry
Spiking an isotope-labeled internal standard into a limited-volume sample is where this conversion shows up most. A 1 µL aliquot of a 10 µM stock delivers 10,000 fmol; diluting that aliquot into a 100 mL sample brings the spike down to 100 fmol/mL — comfortably above an SRM assay's 10 fmol on-column limit while leaving headroom for further dilution. Multiplying by 10⁹ is the bookkeeping that lets a stock prepared at the µmol scale meet a quantitation step run at the fmol scale.
Formula
Worked Examples
One micromole expressed in femtomoles — the conversion anchor and a useful sanity check on the scale gap.
One nanomole — the bridge to the next prefix down.
One picomole expressed in fmol — useful when allocating an internal-standard spike.
Ten micromoles in fmol — illustrating the breathing room a kilo-scale standard prep gives a high-throughput LC-MS workflow.