Pressure Equivalent Conversion Chart Torr or mm Hg Millitorr or Micron in of Hg Atmosphere 760 7.6 x 10+2 760000 29.9 1.0 700 7 x 10+2 700000 27.6 .921 600 6 x 10+2 600000 23.6 .790 500 5 x 10+2 500000 19.7 .659 400 4 x 10+2 400000 15.7 .526 300 3 x 10+2 300000 11.8 .395 200 2 x 10+2 200000 7.87 .263 100 1 x 10+2 100000 3.94 .132 50 5 x 10+1 50000 1.97 .066 10 1 x 10+1 10000 .394 .013 1 1 x 10-0 1000 .039 .001 .1 1 x 10-1 100 .01 1 x 10-2 10 .001 1 x 10-3 1.0 .0005 5 x 10-4 0.5 .0001 1 x 10-4 0.1 .00001 1 x 10-5 0.01 .000001 1 x 10-6 0.001 Ranks Advanced Vacuum Co, Inc. as one of the Top 25 Growing Small to Midsized Manufacturers Advanced Vacuum Company, Inc. 1215 Business Parkway North, Westminster, MD 21157 1-800-272-2525 (410) 876-8200 FAX (410) 876-5820 ISO 9001:2000