Inches to Micrometers Converter

1 inch (in) equals 25,400 micrometers (µm).

Quick answer

1 inch = 25,400 micrometers
1 micrometer = 0.000039370079 inches
Formula: µm = in × 25,400

From To 25,400

1 inch = 25,400 micrometers

How to convert inches to micrometers

µm = in × 25,400

To convert inches to micrometers, multiply the number of inches by 25,400.

Example: 18 in to µm

Start with the value in inches: 18 in.
Multiply by 25,400: 18 × 25,400 = 457,200.
Result: 18 inches = 457,200 micrometers.

Going the other way, 1 micrometer = 0.000039370079 inches, so to convert micrometers back to inches you divide by the same number. See micrometers to inches.

Inches to micrometers conversion table

Inches (in)	Micrometers (µm)
0.25 in	6,350 µm
0.5 in	12,700 µm
0.75 in	19,050 µm
1 in	25,400 µm
1.5 in	38,100 µm
2 in	50,800 µm
2.5 in	63,500 µm
3 in	76,200 µm
4 in	101,600 µm
5 in	127,000 µm
6 in	152,400 µm
7 in	177,800 µm
8 in	203,200 µm
9 in	228,600 µm
10 in	254,000 µm
11 in	279,400 µm
12 in	304,800 µm
13 in	330,200 µm
14 in	355,600 µm
15 in	381,000 µm
16 in	406,400 µm
17 in	431,800 µm
18 in	457,200 µm
19 in	482,600 µm
20 in	508,000 µm
21 in	533,400 µm
22 in	558,800 µm
23 in	584,200 µm
24 in	609,600 µm
25 in	635,000 µm
26 in	660,400 µm
27 in	685,800 µm
28 in	711,200 µm
29 in	736,600 µm
30 in	762,000 µm
31 in	787,400 µm
32 in	812,800 µm
33 in	838,200 µm
34 in	863,600 µm
35 in	889,000 µm

What is an inch?

The inch is a unit of length in the imperial and US customary systems equal to exactly 2.54 centimeters.

More about inches →

What is a micrometer?

The micrometer (also micrometre, and commonly called the micron) is a metric unit of length equal to one millionth of a meter, or one thousandth of a millimeter.

More about micrometers →

Frequently asked questions

How many micrometers are in an inch?

One inch is 25,400 micrometers.

How many inches are in a micrometer?

One micrometer is 0.000039370079 inches.

What is the formula to convert inches to micrometers?

µm = in × 25,400.