تحويل الضغط - Pascal
The normal atmosphere (symbol atm): 1 atm = 101 325 Pa. pieza is a unit derived from the meter-tonne-second system (mts) used in the former Soviet Union between 1933 and 1955: 1 pz = 1000 Pa. millimeter of mercury (symbol mmHg), also called torr in honor of the Italian physicist Evangelista Torricelli: 1 mmHg = 1 torr = 133.3 Pa.