Convert Attopascal to Picopascal (aPa to Picopascal)

Attopascal (aPa) and Picopascal (Picopascal) are both units of pressure. With the conversion form below, you can effortlessly and accurately convert attopascal to picopascal. This free online calculator tool makes it simple and easy to perform the conversion from aPa unit to the Picopascal 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 attopascal (symbol: aPa) is an SI-derived unit of pressure equal to one quintillionth (10^-18) of a pascal. It is an extremely small pressure unit used mainly in theoretical physics, nanotechnology, and scientific research involving ultra-low pressure measurements. The attopascal uses the SI prefix atto, representing a factor of 10^-18.

One attopascal is equal to 0.000000000000000001 pascal, 0.001 femtopascal, 0.000000001 nanopascal, 1×10^-23 bar, and 9.86923×10^-24 standard atmosphere. Although rarely used outside research, the attopascal is part of the complete SI pressure scale.

The picopascal (symbol: pPa) is an SI-derived unit of pressure equal to one trillionth (10^-12) of a pascal. It is used in precision scientific research, acoustics, nanotechnology, and vacuum systems where extremely small pressure values need to be measured. The picopascal uses the SI prefix pico, representing one trillionth.

One picopascal is equal to 0.000000000001 pascal, 0.001 nanopascal, 1,000 femtopascals, 1×10^-17 bar, and 9.86923×10^-18 standard atmosphere. The picopascal provides a convenient SI unit for expressing extremely low pressure values.