Mesh → micron

Mesh to micron converter

Enter any mesh count — we snap to the nearest standard sieve opening and surface neighboring sizes.

Quick picks

Approx. opening
149 µm
Millimeters
0.149
Inches
0.0059
Nearest standard sieve row
100 (100 mesh)

Adjacent mesh sizes

  • 90 · 177 µm
  • 120 · 125 µm

Always confirm mission-critical filtration or particle specs against manufacturer datasheets.

Mesh → micron FAQ

How many microns is 100 mesh?
Common US charts cite roughly 149 µm nominal opening for 100 mesh woven cloth — verify with vendor certs.
How many microns is 200 mesh?
Most handbook rows land near 74 µm for 200 mesh — differences stem from ASTM vs ISO rounding.
Is mesh-to-micron conversion exact?
No — mesh specifies weave density while microns summarize nominal aperture width subject to wire tolerances.
Why do different mesh charts show different micron values?
Wire diameter, weave wear, legacy Tyler conversions, and measurement instruments shift readings.
What is the difference between mesh size and particle size?
Mesh labels the screen; particle size describes material passing or retained — correlate via standardized tables.
Which meshes are common for powders?
40–325 mesh dominates minerals, pigments, pharmaceuticals, and metal powders depending on milling targets.