Cell Doubling Time Calculator

Calculate how quickly the cells of a culture are doubling with this free tool.

Required Information

Doubling Time:

What is Doubling Time?

Doubling time refers to the amount of time it takes for cells in a culture to literally double. This information can be used in many different ways, it depends on the context of your involvement and need for this number.

How Cell Doubling Time is Calculated

Calculating the doubling time of cells can be done when you know the initial reference parameter, the final reference parameter, and the time duration. The formula you would then use is:

Doubling Time = (Time Duration * ln(2)) / ln(Final Reference / Initial Reference)

The ln's are the use of the log math function, making this a rather complicated equation to solve by hand.

How to Use the Doubling Time Calculator

We tried to make this tool as easy to use as possible. The steps required to use it include:

  1. Enter the initial reference parameter, or the initial number of observed cells.

  2. Then enter the final reference parameter, or the number of cells observed at the end.

  3. Enter the amount of time that has passed. Be sure to edit the unit of time measurement, by default it is set to hours but can be measured in smaller units if needed.

  4. Hit calculate and get your cell doubling time in just a second!

Understanding Your Results

When using this tool there is a single result that is shown to you, the amount of time that it takes for cells to double. So you will easily be able to understand the answer since it is clearly written out like this: 3 hours 5 minutes 12 seconds.

Calculation Example

Let's walk through a scenario together. You have an initial cell count of 240 in a culture, you let it sit for 55 minutes. When you look at it again it now has 705 cells, now we will need to identify the cell doubling time.

With the help of our tool that can be done in seconds. We enter 240 in the initial reference parameter field, 705 in the final reference parameter and enter 55 in the time duration field. We make sure that change the unit of time from hours to minutes, then hit calculate.

Our answer is displayed in the blink of an eye, the cell doubling time was 35 minutes and 22 seconds.

Cell Doubling Time - Frequently Asked Questions

Cells double at different times, for example a typical eukaryotic cell cycle doubles in about 24 hours, while some cells that line the intestines may double in just 9 hours.

According to online sources, Kelly cells double in about 30 hours.

With optimal growth conditions, it is believed that E. coli cells can double in just 20 minutes.

Create Date: August 24, 2024

Last Modified Date: September 19, 2024