How to use the od600 to cell density calculator
Estimate E. coli density from OD600. Enter od600, dilution factor in the fields above; the cell density is computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- od — OD600
- df — Dilution factor
Worked example
With od600 = 0.6, dilution factor = 1, the calculator gives cell density ≈ 480,000,000 cells/mL.
Frequently asked questions
What is the formula for the od600 to cell density calculation?
Cell density (cells/mL) = od × df × 8e8. Here od is od600, df is dilution factor.
What inputs do I need for the od600 to cell density calculator?
You need od600, dilution factor. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.