What is the Isotope Calculator (Average Atomic Mass)?

The Isotope Calculator allows users to compute the average atomic mass of an element based on the masses and natural abundances of its isotopes. By entering the mass and percentage abundance of each isotope, the calculator provides the weighted average, giving an accurate representation of the element’s atomic mass. This ensures quick, precise results without manual calculations, making it ideal for chemistry students, educators, and professionals.

How to Use:

1. Enter Isotope 1 Mass (amu): Input the mass of the first isotope in atomic mass units.
2. Enter Isotope 1 Abundance (%): Input the relative abundance of the first isotope as a percentage.
3. Enter Isotope 2 Mass (amu): Input the mass of the second isotope in atomic mass units.
4. Enter Isotope 2 Abundance (%): Input the relative abundance of the second isotope as a percentage.
5. Click “Calculate”: The tool computes the average atomic mass based on your inputs.
6. Review Result: The output displays the average atomic mass in amu. If the abundances don’t sum to 100%, or if invalid values are entered, a helpful error message will guide you to correct the inputs.