PARTICLE SIZE CONVERSION TABLE

Mesh Size	Microns	Inches	Millimeters	Nanometers
10	2000	0.0787	2	2,000,000
12	1680	0.0661	1.679	1,679,000
14	1410	0.0555	1.41	1,410,000
16	1190	0.0469	1.191	1,191,000
18	1000	0.0394	1.001	1,001,000
20	841	0.0331	0.841	841,000
25	707	0.0278	0.706	706,000
30	595	0.0234	0.594	594,000
35	500	0.0197	0.5	500,000
40	420	0.0165	0.419	419,000
45	354	0.0139	0.353	353,000
50	297	0.0117	0.297	297,000
60	250	0.0098	0.249	249,000
70	210	0.0083	0.211	211,000
80	177	0.007	0.178	178,000
100	149	0.0059	0.15	150,000
120	125	0.0049	0.125	125,000
140	105	0.0041	0.104	104,000
170	88	0.0035	0.089	89,000
200	74	0.0029	0.074	74,000
230	63	0.0025	0.064	64,000
270	53	0.0021	0.053	53,000
325	44	0.0017	0.044	44,000
400	37	0.001501	0.037	37,000
-	20	-	0.02	20,000
-	10	-	0.01	10,000
-	1	-	0.001	1,000
-	0.9	-	0.0009	900
-	0.1	-	0.0001	100
-	0.05	-	0.00005	50
-	0.02	-	0.00002	20
-	0.01	-	0.00001	10