BOD Calculator

Calculate Biochemical Oxygen Demand (BOD5) to assess organic pollution in water samples

Sample Parameters

Initial DO (mg/L)

Final DO after 5 days (mg/L)

Sample Volume (mL)

Dilution Volume (mL)

Seed Correction (mg/L)

159.00 mg/L

Polluted

Dilution Factor30.0x

DO Depletion5.30 mg/L

BOD Ultimate (estimated)232.67 mg/L

Oxygen Demand238.50 mg/L

Clean Water< 20 mg/L

Moderately Polluted20-100 mg/L

Polluted100-300 mg/L

Heavily Polluted> 300 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.