# Weight of single cell

1. Mar 15, 2005

### DocToxyn

Anyone out there have a general idea/range of the weight of a typical eukaryotic cell? I found that E coli is at about 665 femtograms, but I'm more interested in mammalian cells.

2. Mar 15, 2005

### loseyourname

Staff Emeritus
The weight of a typical human cell is about 10-19g. I'm not sure how useful this information is, however, as the weight of any individual cell depends largely on what type of cell is being weighed.

3. Mar 16, 2005

### DocToxyn

If a femtogram is 10-15 g, that would put 10-19 in the attogram range, which would then make the mammalian cell smaller (of less mass) than E. coli, which I don’t think it is.

4. Mar 16, 2005

### Monique

Staff Emeritus
A typical animal cell is 10-20 um in diameter (1/5 the size of the smallest particle visible to the naked eye). A bacterium is typically 1 um in diameter. You should be able to estimate a mass from that

5. Mar 16, 2005

### loseyourname

Staff Emeritus
The answer I gave could be wrong. I just googled it and found lecture notes for somebody's class.