COD Calculator

Calculate Chemical Oxygen Demand to measure total oxidizable organic matter in water

Titration Data

Blank Titrant Volume (mL)

Sample Titrant Volume (mL)

Normality of Titrant (N)

Sample Volume (mL)

BOD5 Value (mg/L) - Optional

1000.00 mg/L

Heavily Polluted

Titrant Difference10.00 mL

Oxygen Equivalent20.00 mg O2

Clean Water< 50 mg/L

Moderately Polluted50-250 mg/L

Polluted250-1000 mg/L

Heavily Polluted> 1000 mg/L

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MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: Standard Mathematical References

by Various

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.