Convert Hectopascal to Exapascal (hPa to Exapascal)

Hectopascal (hPa) and Exapascal (Exapascal) are both units of pressure. With the conversion form below, you can effortlessly and accurately convert hectopascal to exapascal. This free online calculator tool makes it simple and easy to perform the conversion from hPa unit to the Exapascal unit.

Pressure is the force applied perpendicular to a surface per unit area: P = F / A. The SI unit is the pascal (Pa), equal to one newton per square metre (1 Pa = 1 N/m²). Practical applications use larger units: the bar (1 bar = 100,000 Pa, close to standard atmospheric pressure), atmosphere (atm) (1 atm = 101,325 Pa), and psi (pounds per square inch, used in the US for tire and gas pressures). Blood pressure is measured in mmHg (millimetres of mercury), also called torr.

The hectopascal (symbol: hPa) is an SI-derived unit of pressure equal to 100 pascals. It is one of the most widely used pressure units in meteorology and weather forecasting, where atmospheric pressure is commonly reported in hectopascals. The hectopascal uses the SI prefix hecto, representing a factor of one hundred.

One hectopascal is equal to 100 pascals, 0.1 kilopascal, 0.001 bar, 1 millibar, and 0.000986923 standard atmosphere. The hectopascal is the international standard unit for reporting atmospheric pressure.

The exapascal (symbol: EPa) is an SI-derived unit of pressure equal to one quintillion (10¹⁸) pascals. It is an extremely large pressure unit used primarily in theoretical physics, geophysics, astrophysics, and advanced scientific research involving exceptionally high pressures. The exapascal uses the SI prefix exa, representing a factor of 10¹⁸.

One exapascal is equal to 1,000 petapascals, 1,000,000 terapascals, 1,000,000,000 gigapascals, 10,000,000,000,000 bar, and 1×10¹⁸ pascals. Although rarely encountered outside research, the exapascal is part of the complete SI pressure scale.