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To help compare different orders of magnitude this page lists lengths between 10⁻⁴ m and 10⁻³ m (100 µm and 1 mm).

Distances shorter than 100 µm

• 100 µm — 1/10^th of a millimetre
• 100 µm — 0.00394 inches
• 100 µm — thickness of a coat of paint
• 100 µm — length of a dust particle
• 100-400 µm — length of Demodex mites living in human hair follicles
• 200 µm — typical length of Paramecium caudatum, a ciliate protist
• 250 to 300 µm — length of a dust mite¹
• 340 µm — length of a single pixel on a 17" monitor with a resolution of 1024*768.
• 500 µm — MEMS micro-engine
• 500 µm — diameter of a human ovum
• 500 µm — typical length of Amoeba proteus, an amoeboid protist

Distances longer than 1 mm

See also

Notes