The average size of a human body cell is between 20-30 micrometres. This means that a human cell is about 1/50th the width of a human hair. However, the size of human cells can vary significantly depending on the cell type. For example, nerve cells can be several feet long, while red blood cells are only about 7 micrometres in diameter.
Here are some additional facts about the size of human cells:
- Most animal cells are small, ranging between 1-100 micrometres.
- Cells that store food material or fat are very large.
- A typical human (eukaryotic) cell is 25 μm in diameter.
- An average cell can hold more than 10,000 bacteria.
