molecular-weight-calculator

Molecular Weight Calculator (Fully Fixed)

Molecular Weight Calculator

Now fully fixed for complex formulas (including nested parentheses)

Enter a formula to calculate
Important: Use standard chemical notation:
• Element symbols start with uppercase letter (e.g., Na not na, Cl not cl)
• Second letter lowercase if present (e.g., Co for cobalt, not CO)
• Supports complex/nested formulas and hydrates with · (dot)
• Examples that now work perfectly:
  - CO2 (carbon dioxide)
  - NaOH
  - CuSO4·5H2O (copper sulfate pentahydrate)
  - Al2(SO4)3
  - (NH4)2Fe(SO4)2·6H2O (Mohr's salt)

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