Chemical Oxygen Demand (COD) Calculator
Result
Chemical Oxygen Demand (COD) Calculator — free online calculator.
Formula
- Chemical Oxygen Demand (COD) Calculator calculates its result from Organic Matter Concentration. It uses the formula COD (mg O2/L) ≈ Organic matter concentration × 2.67 (approximate for typical wastewater). Change any input to recalculate the result instantly.
- The main inputs are Organic Matter Concentration. Enter them in the units and format shown in the calculator.
- Use the units, labels and assumptions shown beside each input so the formula is applied consistently.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Chemical Oxygen Demand (COD)
- Organic Matter Concentration: 2
Using Organic Matter Concentration = 2, the calculated result is 5.34.
Sample result: Calculating…
Frequently asked questions
What does the Chemical Oxygen Demand (COD) calculate?
Chemical Oxygen Demand (COD) Calculator — free online calculator.
Which values should I enter?
Enter Organic Matter Concentration using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: COD (mg O2/L) ≈ Organic matter concentration × 2.67 (approximate for typical wastewater).
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.