Micrometers to inches

inches = micrometers × 0.00003937

How to convert micrometers to inches

One micrometer is 0.00003937 inches, so multiply the number of micrometers by 0.00003937. For example, 20 micrometers is 20 × 0.00003937 = 0.0007874 inches. To go back, divide by the same number, or multiply by 25,400.

Quick estimate

Multiplying by about 0.00004 gets within 1.6% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Length conversions come up in DIY and building plans, running and cycling distances, maps, clothing sizes and travel between countries that use metric and imperial units.

micrometers	inches
1 um	0.00003937 in
2 um	0.00007874 in
3 um	0.00011811 in
4 um	0.00015748 in
5 um	0.00019685 in
6 um	0.00023622 in
7 um	0.00027559 in
8 um	0.00031496 in
9 um	0.00035433 in
10 um	0.0003937 in
11 um	0.00043307 in
12 um	0.00047244 in
13 um	0.00051181 in
14 um	0.00055118 in
15 um	0.00059055 in
16 um	0.00062992 in
17 um	0.00066929 in
18 um	0.00070866 in
19 um	0.00074803 in
20 um	0.0007874 in
25 um	0.00098425 in
30 um	0.0011811 in
40 um	0.0015748 in
50 um	0.0019685 in
60 um	0.0023622 in
70 um	0.00275591 in
75 um	0.00295276 in
80 um	0.00314961 in
90 um	0.00354331 in
100 um	0.00393701 in
120 um	0.00472441 in
150 um	0.00590551 in
200 um	0.00787402 in
250 um	0.00984252 in
300 um	0.01181102 in
400 um	0.01574803 in
500 um	0.01968504 in
750 um	0.02952756 in
1,000 um	0.03937008 in
1,500 um	0.05905512 in
2,000 um	0.07874016 in
5,000 um	0.19685039 in
10,000 um	0.39370079 in

Questions

How many inches are in a micrometer?

0.00003937 inches.

How do I convert micrometers to inches in a spreadsheet?

Put the value in A1 and type =A1*0.00003937, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.