Yoctopascal Unit | All you need to know

The yoctopascal (symbol: yPa) is an SI-derived unit of pressure equal to one septillionth (10-24) of a pascal. It is the smallest official SI pressure unit and is primarily used in theoretical physics, quantum mechanics, nanotechnology, and advanced scientific research involving extremely small pressure values. The yoctopascal uses the SI prefix yocto, representing a factor of 10-24.

One yoctopascal is equal to 0.000000000000000000000001 pascal, 0.001 zeptopascal, 0.000001 attopascal, 1×10-29 bar, and 9.86923×10-30 standard atmosphere. The yoctopascal represents the lower end of the SI pressure measurement scale.