All things · Under the Microscope

Skin cell: how big is it?

Skin cell is about 30 µm. In everyday terms, that is ≈ 283,000 hydrogen atoms.

Size

30 µm

In metres

3.00 × 10⁻⁵ m

Everyday comparison

≈ 283,000 hydrogen atoms

Chapter

Under the Microscope

Did you know?

You shed tens of thousands of skin cells every minute — a lot of household dust is old skin.

How it compares

• About 2.5× bigger than White blood cell (12 µm).
• Roughly the same size as Sunflower pollen (35 µm).

Other things of a similar size

• Red blood cell 7.5 µm
• White blood cell 12 µm
• Sunflower pollen 35 µm
• Human hair (width) 70 µm
• Human egg cell 120 µm
• Paramecium 220 µm

Sizes are rounded, typical values drawn from standard reference sources, including NIST/CODATA physical constants and NASA's planetary fact sheets. Real objects vary; see About for how sizes are chosen.