H₂O₂ Dilution

Dilution calculator for Hydrogen Peroxide.

Verified ToolUpdated: January 10, 2026
Input Parameters
Calculated Result
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Stock Needed (mL)

Methodology & Sources

This uses the dilution equation C1V1 = C2V2. We first convert the Stock % to PPM (1% = 10,000 PPM), then solve for the required Volume (V1).

The underlying formula used is:

(Target PPM * Final Vol (L)) / (Stock % * 10)

References

  • USP <797> Pharmaceutical Compounding

Frequently Asked Questions

How to dilute 35% H2O2 to 3%?

You would need to dilute it roughly 1:11. Use this calculator for precise volume requirements.

Safety precautions?

Always wear gloves and goggles when handling high-concentration hydrogen peroxide (e.g., 35%). It is corrosive.
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