Pascal (Pa), the SI unit of pressure, measures force per unit area. Relating to the concept of pressure, it standardizes units of measurement and provides governing equations, facilitating pressure measurements. Conversion factors enable conversion between different units. Pressure measurement devices like manometers and pressure gauges measure pressure, while fluid mechanics helps analyze fluid behavior in pressure systems. Pascal has wide-ranging applications, from industrial processes (e.g., hydraulics) to medical diagnostics (e.g., blood pressure monitoring), and supports research and development by enabling precise pressure measurements in scientific studies.