Yeast growth calculator

[davehenry]

Is there an online calculator that estimates how many cells that result from a starter or fermentation based on the O.G. And pitch rate?

 

[flars]

Yes, there is.
http://www.brewersfriend.com/yeast-pitch-rate-and-starter-calculator/
http://www.homebrewdad.com/yeast_calculator.php
http://www.yeastcalc.co/yeast-pitch-rate-and-starter-calculator
http://www.mrmalty.com/yeast-tools.php
Also check out woodlandbrew.

 

[WoodlandBrew]

Thanks for mentioning me flars. Those are all fine calculators. When I have compared cell counts to the calculators I've found that Kia's equation is the best for stir plates and that Chris White's is okay for still starters. The equation implemented from Chris White's data doesn't take into account gravity, so you'll need to scale the results. (Divide the result by 9°P and then multiply by your actual gravity in degrees Plato)

On my blog I have a fermentation model that might answer your questions here:
http://www.woodlandbrew.com/2014/05/fermentation-model.html

The link to the Excel sheet that you can modify is at the bottom of the post:
https://dl.dropboxusercontent.com/u/17759267/Fermentation Model.xlsx

I have a starter calculator in the works, but haven't rolled it out yet.