OD600 Calculator

Convert between OD600 optical density readings and cell density for bacterial cultures.

OD600 Parameters

OD600 Conversion

Cells/mL = OD600 × Conversion Factor

Linear range: OD600 0.1-0.8

Cell Density

400.00 × 10⁶
cells/mL

Calculation Details

Raw OD6000.5
Dilution Factor1x
Corrected OD6000.500
Conversion Factor800.00 × 10⁶ cells/mL/OD
Cells per Liter400.00 × 10⁹

OD600 Reference

OD600 0.1Early log phase
OD600 0.3-0.5Mid-log phase (optimal)
OD600 0.6-0.8Late log phase
OD600 > 1.0Stationary phase