Vacuum Pressure - Converting Units

Vacuum converting units - % vacuum - mm Mercury - psi - torr - micron - kPa

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The table below can be used to convert between common vacuum units:

%
Vacuum		 Torr
(mm Mercury)		 Micron psia,
(lb/in2)
abs		 Inches
Mercury
Absolute		 Inches
Mercury
Gauge		 kPa
abs
0.0 760.0 760,000 14.7 29.92 0.00 101.4
1.3 750.0 750,000 14.5 29.5 0.42 99.9
1.9 735.6 735,600 14.2 28.9 1.02 97.7
7.9 700.0 700,000 13.5 27.6 2.32 93.5
21.0 600.0 600,000 11.6 23.6 6.32 79.9
34.0 500.0 500,000 9.7 19.7 10.22 66.7
47.0 400.0 400,000 7.7 15.7 14.22 53.2
50.0 380.0 380,000 7.3 15.0 14.92 50.8
61.0 300.0 300,000 5.8 11.8 18.12 40
74.0 200.0 200,000 3.9 7.85 22.07 26.6
87.0 100.0 100,000 1.93 3.94 25.98 13.3
88.0 90.0 90,000 1.74 3.54 26.38 12
89.5 80.0 80,000 1.55 3.15 26.77 10.7
90.8 70.0 70,000 1.35 2.76 27.16 9.3
92.1 60.0 60,000 1.16 2.36 27.56 8
93.0 51.7 51,700 1.00 2.03 27.89 6.9
93.5 50.0 50,000 0.97 1.97 27.95 6.7
94.8 40.0 40,000 0.77 1.57 28.35 5.3
96.1 30.0 30,000 0.58 1.18 28.74 4
96.6 25.4 25,400 0.49 1.00 28.92 3.4
97.4 20.0 20,000 0.39 0.785 29.14 2.7
98.7 10.0 10,000 0.193 0.394 29.53 1.3
99.0 7.6 7,600 0.147 0.299 29.62 1.0
99.9 1.0 1,000 0.01934 0.03937 29.88 0.13
99.9 0.75 750 0.0145 0.0295 29.89 0.1
99.99 0.10 100 0.00193 0.00394 29.916 0.013
99.999 0.01 10 0.000193 0.000394 29.9196 0.0013
100 0.00 0 0 0 29.92 0
  • 1 psi (lb/in2) = 6,894.8 Pa (N/m2) = 6.895x10-3 N/mm2 = 6.895x10-2 bar

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