Average Atomic Mass Calculator
Calculate the average atomic mass of an element from its isotopes and their natural abundances.
💡 Average Atomic Mass: Weighted average of all naturally occurring isotopes.
Formula: (mass₁ × abundance₁ + mass₂ × abundance₂ + ...) / 100
Formula: (mass₁ × abundance₁ + mass₂ × abundance₂ + ...) / 100
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Average Atomic Mass
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Step-by-Step Calculation
Detailed solution process
Element
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Isotopes
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Sum of Abundances
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Avg Atomic Mass
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amu
Isotope Details
Individual isotope contributions
Formula Reference
Average atomic mass formulas
Average Atomic Mass Tips
Understanding isotopes and atomic mass
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Chemical Disclaimer: Average atomic mass is the weighted average of all naturally occurring isotopes. Results are for educational purposes.