What is gigapascal units?

Gigapascal (GPa) is a unit of pressure, defined as one billion (1,000,000,000) pascals. It is commonly used in fields such as material science, engineering, and geology to measure extreme pressures. For example, the pressure at the center of the Earth is estimated to be around 360 GPa. Gigapascals are also used to measure tensile strength, shear strength, and elastic modulus in materials such as steel, ceramics, and concrete. To put it into perspective, 1 GPa is roughly equivalent to the pressure of an elephant balancing on a pencil tip.