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A micrometer is one thousand times smaller than a millimeter. A micrometer is 10-6 meters, and a millimeter is 10-3 meters. There are 103 micrometers (10-6 meters) in a millimeter (10-3 meters). Simpler answer would be: .500 mm would be 1/2 of a millimeter or 500 micrometer. So .250 mm would be 1/4 of a millimeter or 250 micrometer. I'm not sure what the abbreviation for micrometer is.

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14y ago
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15y ago

A micromter is 10-6 meter (0.000001m) or 0.001mm

The next smallest standard metric measure of distance is a nanometer at 10-9 meter (0.000000001m)

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9y ago

By unit of length and distance and conversion ,we can say that

micrometer,picometer,nanometer,fero meter are less than mm

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12y ago

A micrometre is 1.000×10−6 m or in lay terms 1 thousandth of a metre or 0.001mm

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15y ago

Micrometers, nanometers for example.

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Q: What is smaller then a millimeter?
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