µmol to ng Converter
To convert µmol to ng, multiply the value in micromoles by the molecular weight (g/mol), then multiply by 1,000.
How to Convert µmol to ng
Use this µmol to ng converter to change micromoles into nanograms. Enter µmol and the molecular weight.
µmol × MW gives micrograms. Multiply by 1,000 to get nanograms: ng = µmol × MW × 1,000.
For example, 0.01 µmol of glucose (MW 180.156 g/mol) is 0.01 × 180.156 × 1,000 = 1,801.56 ng.
ng = µmol × MW × 1,000Multiply the micromoles by the molecular weight (g/mol), then multiply by 1,000 to get nanograms.Conversion Formula
The formula to convert µmol to ng is:
Where:
- µmol = amount in micromoles (10⁻⁶ mol)
- ng = mass in nanograms (10⁻⁹ g)
- MW = molecular weight (molar mass) in g/mol
Conversion Table
Common µmol to ng conversions are shown below. The last column uses glucose (MW 180.156 g/mol) as an example.
| µmol | ng (formula) | ng for glucose |
|---|---|---|
| 0.01 | 10 × MW | 1,801.56 |
| 0.1 | 100 × MW | 18,015.6 |
| 0.33 | 330 × MW | 59,451.48 |
| 0.5 | 500 × MW | 90,078 |
| 1 | 1,000 × MW | 180,156 |
| 2.5 | 2,500 × MW | 450,390 |
| 5 | 5,000 × MW | 900,780 |
| 10 | 10,000 × MW | 1,801,560 |
| 33 | 33,000 × MW | 5,945,148 |
| 50 | 50,000 × MW | 9,007,800 |
| 100 | 100,000 × MW | 18,015,600 |
| 250 | 250,000 × MW | 45,039,000 |
| 500 | 500,000 × MW | 90,078,000 |
| 1,000 | 1,000,000 × MW | 180,156,000 |
Worked Examples
Here are some common examples of µmol to ng conversion, using glucose (MW 180.156 g/mol):
- 180,156 ng = 1 µmol
- 900,780 ng = 5 µmol
- 5,945,148 ng = 33 µmol
- 18,015,600 ng = 100 µmol
Unit Definitions
What is a micromole (µmol)?
A micromole (µmol) is a unit of amount of substance equal to 10⁻⁶ mole.
The prefix micro- (µ) means 10⁻⁶, or one millionth. So 1 µmol = 0.000001 mol.
It is often typed as “umol” when the µ symbol is not available.
What is a nanogram (ng)?
A nanogram (ng) is a unit of mass equal to 10⁻⁹ gram.
The prefix nano- (n) means 10⁻⁹, or one billionth. So 1 ng = 0.000000001 g.
Why Is Molecular Weight Needed?
Moles count particles. Grams measure mass. One particle of each substance has its own mass, so the link between them is the molecular weight (MW), also called molar mass.
MW tells you how many grams one mole of a substance weighs. For example, one mole of water weighs about 18.015 g, while one mole of glucose weighs about 180.16 g.
Therefore, to convert µmol to ng, you multiply by MW, then multiply by 1,000. The extra step (× 1,000) only adjusts for the different sizes of the two units.
Uses and Importance of µmol and ng
This conversion is handy when a small molar amount must be written as a mass in ng, for example on an instrument sample sheet.
Sample loading
Instrument methods often ask for the mass loaded in ng. Converting from µmol gives that number.
Isotope-labelled standards
Labelled standards are often added in small µmol or nmol amounts but reported in ng.
Metabolomics
Metabolite amounts can be reported in both molar and mass units.
Frequently Asked Questions (FAQ)
How many ng are in 1 µmol of glucose?
1 × 180.156 × 1,000 = 180,156 ng.
What does the × 1,000 step do here?
µmol × MW gives µg, and 1 µg = 1,000 ng.
Is µmol to ng the same factor as mmol to µg?
Yes. Both shift the amount and the mass by the same step.
Does it matter if my glucose is labelled with isotopes?
Yes. Heavy isotopes raise the molecular weight. Use the MW given for the labelled compound.
Can I convert ng back to µmol?
Yes. Divide ng by the molecular weight, then by 1,000.
Other Related Tools
Accuracy and Scope
The result depends on the molecular weight you enter.
Example values use unlabelled glucose.
Sources