All things · The Edge of Sight
Tardigrade: how big is it?
Tardigrade is about 450 µm. In everyday terms, that is ≈ 6.4 human hairs (width).
- Size
- 450 µm
- In metres
- 4.50 × 10⁻⁴ m
- Everyday comparison
- ≈ 6.4 human hairs (width)
- Chapter
- The Edge of Sight
Did you know?
Nicknamed ‘water bears’, they can survive freezing, boiling, radiation and even the vacuum of space.
How it compares
- About 1.8× bigger than Dust mite (250 µm).
- About 1.3× smaller than Grain of sand (600 µm).
Other things of a similar size
- Human egg cell 120 µm
- Paramecium 220 µm
- Dust mite 250 µm
- Grain of sand 600 µm
- Mustard seed 1.5 mm
- Flea 2.5 mm
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.