Convert Inches to micrometers

1 inch = 25,400 micrometers · µm = in × 25,400

in
Micrometers
25,400µm

1 inch = 25,400 micrometers

When you need this conversion

This conversion goes from inches, the US customary unit for screens, hardware, and short measurements, to micrometers, used for manufacturing tolerances and filtration ratings. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.

Inches to micrometers conversion table

Conversion table from inches to micrometers
Inches (in)Micrometers (µm)
1 in25,400 µm
2 in50,800 µm
3 in76,200 µm
5 in127,000 µm
10 in254,000 µm
15 in381,000 µm
20 in508,000 µm
25 in635,000 µm
50 in1,270,000 µm
75 in1,905,000 µm
100 in2,540,000 µm
250 in6,350,000 µm
500 in12,700,000 µm
1,000 in25,400,000 µm

The formula

µm = in × 25,400

Because both units measure length, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.

Convert the other way

Micrometers to inches

Related length conversions

All length conversions →

Frequently asked questions

How many micrometers are in a inch?
There are 25,400 micrometers in 1 inch. The formula is µm = in × 25,400.
How do you convert inches to micrometers?
Use the formula µm = in × 25,400. For example, 10 inches equals 254,000 micrometers.
Is the inches to micrometers conversion exact?
Yes. Inches and micrometers are both units of length, related by an exact defined factor. Displayed results are rounded for readability.
What is in short for?
in is the standard symbol for inch (also written as in). µm is the symbol for micrometer.