Micro-sieve set mesh to micron conversions for the following size mesh 25, 35, 45, 60, 80, 120, 170, and 320.

U.S. MESH

INCHES

MICRONS

MILLIMETRES

3

0.2650"

6730µm

6.730mm

4

0.1870"

4760µm

4.760mm

5

0.1570"

4000µm

4.000mm

6

0.1320"

3360µm

3.360mm

7

0.1110"

2830µm

2.830mm

8

0.0937"

2380µm

2.380mm

10

0.0787"

2000µm

2.000mm

12

0.0661"

1680µm

1.680mm

14

0.0555"

1410µm

1.410mm

16

0.0469"

1190µm

1.190mm

18

0.0394"

1000µm

1.000mm

20

0.0331"

841µm

0.841mm

25

0.0280"

707µm

0.707mm

30

0.0232"

595µm

0.595mm

35

0.0197"

500µm

0.500mm

40

0.0165"

400µm

0.400mm

45

0.0138"

354µm

0.354mm

50

0.0117"

297µm

0.297mm

60

0.0098"

250µm

0.250mm

70

0.0083"

210µm

0.210mm

80

0.0070"

177µm

0.177mm

100

0.0059"

149µm

0.149mm

120

0.0049"

125µm

0.125mm

140

0.0041"

105µm

0.105mm

170

0.0035"

88µm

0.088mm

200

0.0029"

74µm

0.074mm

230

0.0024"

63µm

0.063mm

270

0.0021"

53µm

0.053mm

325

0.0017"

44µm

0.044mm

400

0.0015"

37µm

0.037mm