Convert Nanopascals to Barye
Convert Nanopascals (nPa) to Barye (Ba) instantly and accurately.
Conversion Formula
Ba = nPa × 1.000000000e-8
About Nanopascals
A nanopascal (nPa) is 10⁻⁹ Pa - the pressure scale of deep interplanetary space. LIGO and Virgo gravitational wave detectors must isolate mirror displacement signals against noise floors in the nanopascal regime. Low Earth orbit residual atmosphere is ~100 µPa; deep interplanetary space is ~1-10 nPa depending on solar wind activity. Thermospheric gas layers above 200 km altitude fall into the nPa-µPa range. Casimir force calculations and quantum vacuum fluctuation modelling also operate at nanopascal scales. 1 nPa = 10⁻⁹ Pa.
About Barye
The barye (Ba) is the CGS unit of pressure - 1 dyne/cm² = exactly 0.1 Pa = 1 µbar. Standard atmosphere = 1,013,250 Ba. It dominated physics and laboratory science from the mid-19th century until SI adoption. Legacy acoustic CGS literature used 1 barye (0.1 Pa) as the underwater reference pressure, creating a 100 dB offset versus the modern 1 µPa reference - a critical correction when comparing historical and modern underwater acoustics databases. Still encountered in classical fluid mechanics derivations and early 20th-century meteorological literature. 1 Ba = 0.1 Pa.
Quick Reference Table
| Nanopascals (nPa) | Barye (Ba) |
|---|---|
| 1 nPa | 1 × 10-8 Ba |
| 2 nPa | 2 × 10-8 Ba |
| 5 nPa | 5 × 10-8 Ba |
| 10 nPa | 1 × 10-7 Ba |
| 25 nPa | 2.5 × 10-7 Ba |
| 50 nPa | 5 × 10-7 Ba |
| 100 nPa | 1 × 10-6 Ba |