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Home > FAQ and Resources > Particle Sizing/Conversions

Particle Sizing/Conversions

Custom particle size classification service:

We offer custom particle size classification services to grade your particles, powders or aggregates to size. We can grade your particles to any size between 15um (0.00059 inches) and 5.6mm (0.220 inches). The table below shows cut sizes that we can currently grade to. Custom cut sizes are available by request.

Do you need to measure your particles for size and particle size distribution? We offer Analytical Services.

We specialize in small runs but can also handle larger quantities. Contact us for a quote.

Micron (0.001mm)
Inches
Mesh No.
15um (0.015mm)
0.00059"
---
16um (0.016mm)
0.00063"
---
18um (0.018mm)
0.00071"
---
20um (0.020mm)
0.00079"
635
21um (0.021mm)
0.00083"
---
22um (0.022mm)
0.00087"
---
23um (0.023mm)
0.00091"
---
24um (0.024mm)
0.00094"
---
25um (0.025mm)
0.00098"
---
26um (0.026mm)
0.00102"
---
27um (0.027mm)
0.00106"
500
28um (0.028mm)
0.00110"
---
30um (0.030mm)
0.00118"
---
32um (0.032mm)
0.00126" 450
34um (0.034mm)
0.00134"
---
36um (0.036mm)
0.00142"
---
38um (0.038mm)
0.00150" 400
40um (0.040mm)
0.00157"
---
45um (0.045mm)
0.00177" 325
47um (0.047mm)
0.00185" ---
50um (0.050mm)
0.00197" ---
53um (0.053mm)
0.0021" 270
56um (0.056mm)
0.0022" ---
63um (0.063mm)
0.0025"
230
71um (0.071mm)
0.0028" ---
75um (0.075mm)
0.0030"
200
80um (0.080mm)
0.0032" ---
90um (0.090mm)
0.0035"
170
100um (0.100mm)
0.0039" ---
106um (0.106mm)
0.0042"
140
112um (0.112mm)
0.0044" ---
125um (0.125mm)
0.0049"
120
140um (0.140mm)
0.0055" ---
150um (0.150mm)
0.0059"
100
160um (0.160mm)
0.0063" ---
172um (0.172mm)
0.0068" ---
174um (0.174mm)
0.0069" ---
180um (0.180mm)
0.0071" 80
212um (0.212mm)
0.0083" 70
216um (0.216mm)
0.0085" ---
219um (0.219mm)
0.0086" ---
250um (0.250mm)
0.0098" 60
300um (0.300mm)
0.0118" 50
355um (0.355mm)
0.0140" 45
425um (0.425mm)
0.0167" 40
495um (0.495mm)
0.0195" ---
499um (0.499mm)
0.0196" ---
500um (0.50mm)
0.0197" 35
600um (0.60mm)
0.0236" 30
710um (0.71mm)
0.0280" 25
850um (0.85mm)
0.0335" 20
1000um (1.00mm) 0.0394" 18
1180um (1.18mm) 0.0465" 16
1400um (1.40mm) 0.0551" 14
1450um (1.450mm)
0.0571" ---
1550um (1.550mm)
0.0610" ---
1700um (1.70mm) 0.0669" 12
2000um (2.00mm) 0.0787" 10
2360um (2.36mm) 0.0929" 8
2800um (2.80mm) 0.1102" 7
3350um (3.35mm) 0.1319" 6
4000um (4.00mm) 0.1575" 5
4750um (4.75mm) 0.1870" 4
5600um (5.60mm) 0.2205" 3-1/2


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About the Company:

Cospheric is a global leader in manufacturing and distribution of precision nanospheres, microspheres, and larger precision spherical particles. Scientists and engineers worldwide rely on us as a proven source to fulfill their needs for microparticles in narrow size ranges, wide selection of colors, densities, properties and formulations. We leverage our extensive technical expertise in micropowders to help each customer find an optimal microparticle solution for their needs. We ship worldwide daily out of our Santa Barbara, CA manufacturing facility.
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