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Mole Conversion Table
This comprehensive mole conversion table shows how various units relate to the mole, the SI base unit for amount of substance. Use this reference for quick conversions between moles and other common units.
| Conversion | To Unit | Multiplier |
|---|---|---|
| Moles to kilomoles | Kilomoles | 0.001 |
| Moles to pound-moles | Pound-moles | 0.00220462 |
This mole conversion reference table provides accurate conversion factors for both metric (SI) units and imperial units. All values are based on internationally recognized standards for maximum precision in scientific and engineering applications.
What is a Mole?
The mole (symbol: mol) is the base unit of amount of substance in the International System of Units (SI). It is defined by taking the fixed numerical value of the Avogadro constant N_A to be 6.02214076 × 10²³, when expressed in the unit mol⁻¹, and is called the Avogadro number. This number of elementary entities (e.g., atoms, molecules, ions) constitutes one mole.
The mole is used worldwide as the standard unit for measuring the amount of a substance, forming the foundation for stoichiometry and chemical calculations. Our mole conversion tool helps you easily convert between moles and other units.
What is the SI of Mole?
The mole is one of the seven base units in the International System of Units (SI). It serves as the fundamental unit for measuring the amount of substance. All other amount of substance units are derived from the mole, making it essential for SI units conversion:
- Kilomole (kmol) = 1,000 moles
- Pound-mole (lb-mol) ≈ 453.592 moles
What are Moles Used For?
Moles are used in a wide range of applications across chemistry, physics, and engineering. As the base SI unit for amount of substance, moles provide a standard for all metric system conversions:
Chemistry
Stoichiometric calculations in chemical reactions, determining concentrations of solutions, and balancing chemical equations.
Physics
Relating the number of particles in a sample to its mass and other properties, especially in thermodynamics and statistical mechanics.
Engineering
Material science, chemical engineering processes, and environmental monitoring require precise measurements of substance amounts.
Education
Teaching fundamental concepts of chemistry and physics, allowing students to connect the microscopic world of atoms and molecules to macroscopic measurements.
Etymology and History
The word "mole" is derived from the German "Mol," coined by the chemist Wilhelm Ostwald in 1894. "Mol" is a shortened form of "Molekül" (molecule). The concept of the mole is closely linked to the work of Amedeo Avogadro, who proposed that equal volumes of gases at the same temperature and pressure contain the same number of molecules.
The mole was officially adopted as the seventh SI base unit in 1971. The definition was updated in 2019 to be based on a fixed value of the Avogadro constant, ensuring its stability and precision for scientific measurements.
Frequently Asked Questions
Why is the mole the base unit for amount of substance?
The mole was chosen as the base SI unit because it provides a practical link between the macroscopic scale (grams) and the microscopic scale (atomic mass units). Its definition based on the Avogadro constant makes it universally reproducible and essential for all chemical calculations.
How is the mole defined?
The mole is defined by the Avogadro constant, which is exactly 6.02214076 × 10²³. One mole contains this number of elementary entities. This definition provides a highly accurate and stable standard for measuring the amount of a substance.
How do I convert moles to other units?
Use our mole conversion calculators above, or multiply by the appropriate conversion factor. For example, to convert moles to kilomoles, divide by 1,000. Our tool handles conversions between moles, kilomoles, and pound-moles with high precision.
What are common uses for mole conversion?
Mole conversion is essential in chemistry (calculating reactants and products), physics (thermodynamics), engineering (material science), and education. It is fundamental for any quantitative work involving chemical substances.
Is your mole conversion tool free to use?
Yes, our mole conversion calculator is completely free with no registration required. Simply enter your value, select your target unit, and get instant, accurate results. We believe precise measurement conversion should be accessible to everyone.