🧪 Mesh to Micron Converter
Estimate the particle size in microns that corresponds to a given mesh count, and vice versa.
Mesh count expresses how many openings exist in one inch of screen. This tool uses the industry-recognised approximation micron ≈ 14900 / mesh to estimate particle size.
Number of openings per linear inch. Common industrial meshes range from 20 to 400.
Micron (µm) values denote the approximate particle diameter passing through the mesh.
Estimated Particle Size (µm)
149
Opening Width (mm)
0.254
Opening Width (inches)
0.01
How to Use This Calculator
Enter the mesh count
Type the number of openings per inch of the screen or sieve. The calculator converts it to an approximate micron size.
Or enter the desired micron size
If you know the target particle diameter, enter it in the micron field. The mesh count updates automatically.
Use the opening width data
Review the opening width in inches and millimeters to compare with manufacturer specifications or process requirements.
Formula
Microns ≈ 14900 ÷ Mesh
Mesh ≈ 14900 ÷ Microns
Opening Width (inches) = 1 ÷ Mesh • Opening Width (mm) = Opening Width (inches) × 25.4
Note: This approximation assumes standard woven wire mesh with typical wire diameters. Actual particle size limits may vary.
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Mesh count is a convenient way to describe sieve screens, but engineers and technicians often need to know the corresponding particle size. This calculator bridges the gap using the widely adopted approximation micron ≈ 14900 ÷ mesh, enabling quick process checks without consulting tables.
Powder coating, pharmaceuticals, ceramics, mining, and additive manufacturing all rely on consistent particle sizes. Converting between mesh and microns helps ensure feedstock quality, optimise filtration, and document compliance with industry standards.
Because the formula is an approximation, always verify critical specifications with supplier data or laboratory sieving results when tolerances are tight.
Frequently Asked Questions
How accurate is the 14900 constant?
It is a common industry approximation based on typical wire diameters. Actual values can vary by manufacturer, especially for fine meshes.
Can I use this for higher mesh counts (over 400)?
For very fine meshes, the approximation becomes less reliable. Consult manufacturer charts or lab testing for precision-critical work.
What if my mesh size is given in metric units?
Convert metric mesh (per centimeter) to mesh per inch first by dividing by 0.3937. Then use this calculator.
Does this account for wire diameter?
No. Wire thickness reduces the effective opening. This tool provides an approximation; manufacturer specifications include exact opening sizes based on wire diameter.