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Vacuum Conversion Table

%Vacuum inHg (rel) ft H2O (rel) Torr (abs)
mmHg (abs)
mbar (abs) psia (abs)
0% 0.00 0.00 760.0 1013.3 14.70
10% 2.99 3.39 684.0 911.7 13.23
20% 5.98 6.78 608.0 810.4 11.76
30% 8.98 10.17 532.0 709.1 10.29
40% 11.97 13.56 456.0 607.8 8.82
50% 14.96 16.95 380.0 506.5 7.35
60% 17.95 20.34 304.0 405.2 5.88
70% 20.94 23.73 228.0 303.9 4.41
80% 23.94 27.12 152.0 202.6 2.94
90% 26.93 30.51 76.0 101.3 1.47
91% 27.23 30.85 68.4 91.2 1.32
92% 27.53 31.19 60.8 81.0 1.18
93% 27.83 31.53 53.2 70.9 1.03
94% 28.13 31.87 45.6 60.8 0.88
95% 28.42 32.21 38.0 50.6 0.73
96% 28.72 32.54 30.4 40.5 0.59
97% 29.02 32.88 22.8 30.4 0.44
98% 29.32 33.22 15.2 20.3 0.29
99% 29.62 33.56 7.6 10.1 0.15
99.1% 29.65 33.59 6.8 9.1 0.13
99.2% 29.68 33.63 6.1 8.1 0.12
99.3% 29.71 33.66 5.3 7.1 0.10
99.4% 29.74 33.70 4.6 6.1 0.09
99.5% 29.77 33.73 3.8 5.1 0.07
99.6% 29.80 33.76 3.0 4.1 0.06
99.7% 29.83 33.80 2.3 3.0 0.04
99.8% 29.86 33.83 1.5 2.0 0.03
99.9% 29.89 33.87 0.8 1.0 0.01
<100% 29.92 33.90 0.0 0.0 0.00