Doubling Time

Here, you calculate the doubling time of your cells online. It's helpful to manage cell culture.

Two Time Points

Several Time Points

Initial concentration : Final concentration : Duration of culture :   Do you like this tool?  Does it help you?   Would you recommend this tool ?

Paste your data here (couple time-amount): This format (from excel) 0 0.4 24 1.1 45 2.5 78 6.1 EXAMPLE !!! OR this one 0 0.4 24 1.1 45 2.5 78 6.1 OR with spacers 0;0.4;24;1.1;45;2.5;78;6.1 What is the 1st column ? Time Amount EXAMPLE: Doubling Time = 21.86=ln(2)/0.0317 Growth Rate = 0.0317 Growth Rate = number of doublings that occur per unit of time Equation : amount=0.5288*e0.0317*time At t=0, calculated cell concentration = 0.5288

Cite this website as following:
Roth V. 2006 <http://www.doubling-time.com/compute.php>

The doubling time equation works for any kind of exponentially growing object.
I didn't mention any unit for time and concentrations. It's not necessary.
Keep in mind that the doubling time unit is the same than the one you used for the duration.
Instead of using concentration of cells, you can use the number of cells.