The gigapascal conversion selector selects the pressure/stress measurement unit to convert to starting from gigapascals (GPa). To make a conversion starting from a unit of pressure other than gigapascal, simply click on the "Reset" button.
The gigapascal is a unit of pressure equal to 109 pascals (1 GPa = 109 Pa), the SI derived unit of pressure.
The gigapascal (GPa) is also equal to 106 kilopascals (kPa), or 1,000 megapascals (MPa), or 9,869.23267 atmospheres (atm), or 10,000 bars (bar), or 7.500616 × 106 millimeters of mercury at 0 °C (mmHg), or 4,014,630 inches of water at 4 °C (inH2O), or 1.45037 × 105 pounds per square inch (psi), or 2.0885434 × 107 pounds per square foot (psf) or 7.50061683 × 106 torr (Torr).
The gigapascal is equal to 109 newtons per square meter (1 GPa = 109 N/m2). The newton (N) is a unit of force in the SI while the square meter (m2) is a unit of area in the SI.