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Bacterial Growth Calculator

Cell count after time t given an initial count and a doubling time.

Project bacterial population size from an initial cell count, the generation (doubling) time, and elapsed time.

Daniel Oh By Daniel Oh
Reviewed by Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

min
min

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

N(t) = N₀ · 2^(t/g) where g is the generation/doubling time.

In depth

Project bacterial population size from an initial cell count, the generation (doubling) time, and elapsed time.