I am growing cells in a 24 well plate. I do not have access to a microscope with a camara, so I have to calculate the number of cells in the wells manually. I can get the confluency pretty easily, but need the actual cell number for my experiment. I know the area of the well plate, so if I could calculate the cell area density from the confluency this would be a trivial calculation. Does anyone know if there is a formula for confluency to cell density for RPE-1 cells?