nmol to ng Converter
To convert nmol to ng, multiply the value in nanomoles by the molecular weight (g/mol).
How to Convert nmol to ng
Use this nmol to ng converter to change nanomoles into nanograms. Enter nmol and the molecular weight.
Both units use the nano- prefix, so the rule is simply ng = nmol × molecular weight.
For example, 10 nmol of testosterone (MW 288.431 g/mol) is 10 × 288.431 = 2,884.31 ng.
ng = nmol × MWMultiply the nanomoles by the molecular weight (g/mol) to get nanograms.Conversion Formula
The formula to convert nmol to ng is:
Where:
- nmol = amount in nanomoles (10⁻⁹ mol)
- ng = mass in nanograms (10⁻⁹ g)
- MW = molecular weight (molar mass) in g/mol
Conversion Table
Common nmol to ng conversions are shown below. The last column uses testosterone (MW 288.431 g/mol) as an example.
| nmol | ng (formula) | ng for testosterone |
|---|---|---|
| 0.01 | 0.01 × MW | 2.88431 |
| 0.1 | 0.1 × MW | 28.8431 |
| 0.33 | 0.33 × MW | 95.18223 |
| 0.5 | 0.5 × MW | 144.2155 |
| 1 | 1 × MW | 288.431 |
| 2.5 | 2.5 × MW | 721.0775 |
| 5 | 5 × MW | 1,442.155 |
| 10 | 10 × MW | 2,884.31 |
| 33 | 33 × MW | 9,518.223 |
| 50 | 50 × MW | 14,421.55 |
| 100 | 100 × MW | 28,843.1 |
| 250 | 250 × MW | 72,107.75 |
| 500 | 500 × MW | 144,215.5 |
| 1,000 | 1,000 × MW | 288,431 |
Worked Examples
Here are some common examples of nmol to ng conversion, using testosterone (MW 288.431 g/mol):
- 288.431 ng = 1 nmol
- 1,442.155 ng = 5 nmol
- 9,518.223 ng = 33 nmol
- 28,843.1 ng = 100 nmol
Unit Definitions
What is a nanomole (nmol)?
A nanomole (nmol) is a unit of amount of substance equal to 10⁻⁹ mole.
The prefix nano- (n) means 10⁻⁹, or one billionth. So 1 nmol = 0.000000001 mol.
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 nmol to ng, you multiply by MW. Both units use the same prefix size, so no extra step is needed.
Uses and Importance of nmol and ng
nmol and ng are a matched pair. This is one of the easiest moles-to-mass conversions, and it is common in hormone and trace analysis.
Hormone units
Hormones may be reported in nmol/L or ng/mL. The nmol-to-ng rule is the core of that conversion.
Spiking standards
Internal standards are often planned in nmol and pipetted as ng.
Oligo mass
An oligo yield in nmol can be converted to ng with its molecular weight.
Frequently Asked Questions (FAQ)
Why is nmol to ng just × MW?
The nano- prefix appears in both units, so the powers of ten cancel.
How many ng are in 1 nmol of testosterone?
About 288.431 ng.
How do I get from nmol/L to ng/mL for testosterone?
nmol/L × 288.431 gives ng/L. Divide by 1,000 to get ng/mL. So 10 nmol/L ≈ 2.884 ng/mL.
Does this work for DNA oligos?
Yes. Use the oligo's molecular weight, which depends on its length and sequence.
Is it the same as pmol to pg?
Yes. Matching prefixes always give the simple rule mass = amount × MW.
Other Related Tools
Accuracy and Scope
The result depends on the molecular weight you enter.
This converter does not interpret hormone results.
Sources