What is the Isotope Calculator?

The Isotope Calculator estimates the average atomic mass of an element based on the masses and relative abundances of its isotopes. By entering the mass and percentage abundance of each isotope, the calculator computes a weighted average, reflecting the element’s overall atomic mass. This tool is helpful for chemistry students, educators, and professionals who want to quickly determine atomic masses without manual calculations.

How to Use:

1. Enter Mass of Isotope 1: Input the mass of the first isotope in atomic mass units (u).
2. Enter Abundance of Isotope 1: Type in the percentage abundance of the first isotope.
3. Enter Mass of Isotope 2: Input the mass of the second isotope in atomic mass units (u).
4. Enter Abundance of Isotope 2: Type in the percentage abundance of the second isotope.
5. Click “Calculate”: The calculator will display the average atomic mass of the element.
6. Review the Result: Use this value for chemical calculations, lab experiments, or homework assignments.