Mesh ↔ Microns — Interactive Particle Size Calculator SaitechAI

Use ASTM/US standard sieve lookup or an optional quick estimate. Supports reverse look‑up (microns → nearest mesh).
Mesh Size vs Microns Sieve Illustration
Illustration: Relationship between mesh number and particle size opening in microns

Mesh → Microns

Result will appear here.
Notes: Lookup values are from the commonly used US Standard Sieve Series (approx.). If a wire diameter is provided, the aperture is estimated as: aperture (µm) ≈ 25,400 ÷ mesh − wire_diameter. Real sieves follow ASTM E11 tables; wire diameters vary by mesh and manufacturer.

Microns → Mesh

Result will appear here.
This returns the nearest standard mesh from the internal table and also gives a quick‑estimate mesh using mesh ≈ 25,400 ÷ (µm + wire_diameter) if a wire diameter is provided.

Reference — Common US Sieve No. ↔ Opening (µm)

Mesh (US #) Opening (µm) Opening (mm)
Values are widely used industry approximations for ASTM/US Standard Sieve openings (informational; verify against your QA standard when critical).