Convert Nanopascals to Bars
Convert Nanopascals (nPa) to Bars (bar) instantly and accurately.
Conversion Formula
bar = nPa × 1.000000000e-14
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 Bars
A bar = exactly 100,000 Pa ≈ 0.987 atm - the world standard for industrial pressure outside North America. Hydraulic systems, pneumatic equipment, gas cylinders, dive computers, and tyre gauges in Europe and Asia use bar. Scuba diving: +1 bar per 10 m depth; at 40 m recreational limit = 5 bar absolute. European tyre pressure labels show bar alongside kPa. Industrial processes: steam at 10-50 bar; high-pressure reactors 100-300 bar; water-jet cutting 1,000-4,000 bar. 1 bar = 100,000 Pa = 14.504 psi.
Quick Reference Table
| Nanopascals (nPa) | Bars (bar) |
|---|---|
| 1 nPa | 1 × 10-14 bar |
| 2 nPa | 2 × 10-14 bar |
| 5 nPa | 5 × 10-14 bar |
| 10 nPa | 1 × 10-13 bar |
| 25 nPa | 2.5 × 10-13 bar |
| 50 nPa | 5 × 10-13 bar |
| 100 nPa | 1 × 10-12 bar |