Chemical Oxygen Demand Calculator.

Calculate COD from blank and sample titrant volumes with an explicitly entered equivalent conversion factor.

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Set your values

Results update as you type.

02 / ANSWER

Blank titrant volume

Sample titrant volume

Sample volume

Titrant normality

COD reporting factor F

How to Use

COD = (A − B) × N × F ÷ V, where A is blank titrant, B is sample titrant, and F is your entered reporting factor.

Every material coefficient and convention is an input. No element, fluid, lab-method, or safety database is queried; results update after a short debounce.

FAQs

Does this select a COD laboratory method?

No. The page performs only the displayed blank-minus-sample titration arithmetic; enter the reporting factor and follow your approved laboratory procedure.

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