mol to pg Converter
To convert mol to pg, multiply the value in moles by the molecular weight (g/mol), then multiply by 10¹².
How to Convert mol to pg
Use this mol to pg converter to turn moles into picograms. Enter the moles and the molecular weight.
A picogram is 10−12 gram. Multiply moles by the molecular weight to get grams, then multiply by 1012 to get picograms.
For example, estradiol has a molecular weight of about 272.388 g/mol. So 1 × 10−12 mol (1 pmol) of estradiol is 272.388 pg.
pg = mol × MW × 10¹²Multiply the moles by the molecular weight (g/mol), then multiply by 10¹² to get picograms.Conversion Formula
The formula to convert mol to pg is:
Where:
- mol = amount in moles
- pg = mass in picograms (10⁻¹² g)
- MW = molecular weight (molar mass) in g/mol
Conversion Table
Common mol to pg conversions are shown below. The last column uses estradiol (MW 272.388 g/mol) as an example.
| mol | pg (formula) | pg for estradiol |
|---|---|---|
| 0.01 | 10,000,000,000 × MW | 2.72388 × 10¹² |
| 0.1 | 100,000,000,000 × MW | 2.72388 × 10¹³ |
| 0.33 | 330,000,000,000 × MW | 8.988804 × 10¹³ |
| 0.5 | 500,000,000,000 × MW | 1.36194 × 10¹⁴ |
| 1 | 1 × 10¹² × MW | 2.72388 × 10¹⁴ |
| 2.5 | 2.5 × 10¹² × MW | 6.8097 × 10¹⁴ |
| 5 | 5 × 10¹² × MW | 1.36194 × 10¹⁵ |
| 10 | 1 × 10¹³ × MW | 2.72388 × 10¹⁵ |
| 33 | 3.3 × 10¹³ × MW | 8.988804 × 10¹⁵ |
| 50 | 5 × 10¹³ × MW | 1.36194 × 10¹⁶ |
| 100 | 1 × 10¹⁴ × MW | 2.72388 × 10¹⁶ |
| 250 | 2.5 × 10¹⁴ × MW | 6.8097 × 10¹⁶ |
| 500 | 5 × 10¹⁴ × MW | 1.36194 × 10¹⁷ |
| 1,000 | 1 × 10¹⁵ × MW | 2.72388 × 10¹⁷ |
Worked Examples
Here are some common examples of mol to pg conversion, using estradiol (MW 272.388 g/mol):
- 2.72388 × 10¹⁴ pg = 1 mol
- 1.36194 × 10¹⁵ pg = 5 mol
- 8.988804 × 10¹⁵ pg = 33 mol
- 2.72388 × 10¹⁶ pg = 100 mol
Unit Definitions
What is a mole (mol)?
The mole (mol) is the SI base unit for amount of substance. It counts particles, such as atoms, molecules or ions.
Since 2019, one mole contains exactly 6.02214076 × 1023 particles. This number is the Avogadro constant.
What is a picogram (pg)?
A picogram (pg) is a unit of mass equal to 10⁻¹² gram.
The prefix pico- (p) means 10⁻¹², or one trillionth. So 1 pg = 0.000000000001 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 mol to pg, you multiply by MW, then multiply by 10¹². The extra step (× 10¹²) only adjusts for the different sizes of the two units.
Uses and Importance of mol and pg
Picograms are used for extremely small masses, such as hormone amounts in a few milliliters of blood.
Hormone immunoassays
Estradiol is often reported in pg/mL. Converting a molar amount into pg shows how it relates to these results.
Ultra-trace analysis
Some environmental and forensic tests detect picogram amounts of a substance.
Instrument sensitivity
Detection limits of sensitive instruments are often given in pg on column.
Frequently Asked Questions (FAQ)
What is the shortcut from pmol to pg?
For picomoles, pg = pmol × MW. The powers of ten cancel out.
How many pg are in 1 mol of estradiol?
1 × 272.388 × 1012 ≈ 2.724 × 1014 pg, or about 272 g.
Why is estradiol measured in pg/mL?
It circulates in very small amounts. Labs report it in pg/mL (mass) or pmol/L (molar); Labcorp lists a factor of 3.67 from pg/mL to pmol/L.
Is a picogram smaller than a nanogram?
Yes. 1 pg is one thousandth of 1 ng.
Can I weigh a picogram?
No ordinary balance can. Picogram amounts are made by diluting a solution of known concentration.
Other Related Tools
Accuracy and Scope
The result depends on the molecular weight you enter.
This tool converts units only and does not interpret hormone levels.
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