Oxidation State Calculator
Determine the oxidation state (oxidation number) of each element in a compound or polyatomic ion using standard rules.
⚠️
Oxidation State Result
—
—
—
Oxidation State Visualization
Visual representation of oxidation states
—
Oxidation State Assignment
Step-by-step oxidation state determination
Compound
—
Formula
Total Charge
—
Sum of states
Elements
—
Count
Highest OS
—
Max oxidation state
Oxidation State Rules
Key rules for assigning oxidation states
Oxidation State Tips
Understanding oxidation states
📊
Chemical Disclaimer: This calculator uses standard oxidation state rules. Some elements may have variable oxidation states depending on the compound.