Convert Attomole to Mole (amol to mol)

Attomole (amol) and Mole (mol) are both units of amount of substance. With the conversion form below, you can effortlessly and accurately convert attomole to mole. This free online calculator tool makes it simple and easy to perform the conversion from amol unit to the mol unit.

Amount of substance is an SI base quantity that counts the number of specified elementary entities—atoms, molecules, ions, electrons, or other particles—in a sample. Its unit is the mole (mol). One mole contains exactly 6.02214076 × 10²³ entities (Avogadro's number), defined exactly since the 2019 SI revision. The mole is the bridge between the atomic scale and the laboratory scale, making it indispensable in chemistry and biochemistry.

An attomole (amol) is an SI-prefixed unit of amount of substance equal to 10⁻¹⁸ mole. The prefix atto- represents one quintillionth (0.000000000000000001) of the base unit. Although extremely small, the attomole is a practical unit in analytical chemistry, molecular biology, biochemistry, nanotechnology, and pharmaceutical research, where scientists often measure minute quantities of molecules, DNA, proteins, or other chemical substances.

Like all metric submultiples of the mole, the attomole follows the International System of Units (SI). Since one mole contains exactly 6.02214076 × 10²³ specified elementary entities, one attomole corresponds to approximately 6.022 × 10⁵ particles, depending on the type of entity being counted, such as atoms, molecules, or ions.

Attomoles are commonly encountered in highly sensitive laboratory techniques such as mass spectrometry, fluorescence assays, DNA sequencing, proteomics, and trace chemical analysis. Using attomoles allows researchers to express extremely small amounts of substances without writing long decimal values in moles.

To better understand this measurement category and related SI units, visit our complete guide to Amount of Substance.

A mole (symbol: mol) is the SI base unit of amount of substance. Moles are used to measure the quantity of elementary entities, such as atoms, molecules, ions, electrons, or other specified particles. Since 2019, one mole has been defined as containing exactly 6.02214076 × 10²³ specified elementary entities, a fixed value known as the Avogadro constant.

The mole provides a practical way to relate the microscopic world of atoms and molecules to measurable laboratory quantities. Instead of counting individual particles, scientists use moles to calculate chemical reactions, prepare solutions, determine concentrations, and express the amount of substances involved in physical and chemical processes.

The mole is fundamental to chemistry, biochemistry, pharmacy, materials science, environmental science, and chemical engineering. It is also the basis for SI-prefixed units such as kilomole (kmol), millimole (mmol), micromole (µmol), nanomole (nmol), picomole (pmol), femtomole (fmol), and attomole (amol), making it one of the most important units in scientific measurement.

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