All things · The Edge of Sight

Human egg cell: how big is it?

Human egg cell is about 120 µm. In everyday terms, that is ≈ 1.7 human hairs (width).

Size

120 µm

In metres

1.20 × 10⁻⁴ m

Everyday comparison

≈ 1.7 human hairs (width)

Chapter

The Edge of Sight

Did you know?

The largest cell in the human body — just about visible without a microscope.

How it compares

• About 1.7× bigger than Human hair (width) (70 µm).
• About 1.8× smaller than Paramecium (220 µm).

Other things of a similar size

• Skin cell 30 µm
• Sunflower pollen 35 µm
• Human hair (width) 70 µm
• Paramecium 220 µm
• Dust mite 250 µm
• Tardigrade 450 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.