Conversion Table

Common Units of Pressure

Unit N·m-2 (Pa) bar atm Torr (mm Hg) lbs/sq.in. (psi)
1 N·m-2
(1 Pa)
1 10-5 9.8692X10-6 7.50062 X 10-3 1.45038 X 10-4
1 bar 105 1 0.98692 750.062 14.5038
1 atm 101325 1.01325 1 759.9988 14.6960
1 Torr (1 mm Hg) 133.3224 1.333224 X 10-3 1.31579 X 10-3 1 1.93368 X 10-2
10 lbs/sq.in. (psi) 68948 0.68948 0.68046 517.148 10