Convert Nanopascals to Technical Atmospheres
Convert Nanopascals (nPa) to Technical Atmospheres (at) instantly and accurately.
Conversion Formula
at = nPa × 1.019716213e-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 Technical Atmospheres
One technical atmosphere (at) = exactly 1 kgf/cm² = 98,066.5 Pa ≈ 0.968 standard atmospheres. The metric technical pressure unit used in pre-SI European and Japanese engineering for boilers, hydraulic cylinders, and compressed gas systems. A steam boiler at 10 at operates at 0.981 MPa; hydraulic presses are rated at 200-600 at. Still used parenthetically in old German and Japanese machinery manuals and standards (DIN 1301-3 legacy). Converts simply from kgf/cm²: 1 at ≡ 1 kgf/cm². 1 at = 98,066.5 Pa.
Quick Reference Table
| Nanopascals (nPa) | Technical Atmospheres (at) |
|---|---|
| 1 nPa | 1.02 × 10-14 at |
| 2 nPa | 2.039 × 10-14 at |
| 5 nPa | 5.099 × 10-14 at |
| 10 nPa | 1.02 × 10-13 at |
| 25 nPa | 2.549 × 10-13 at |
| 50 nPa | 5.099 × 10-13 at |
| 100 nPa | 1.02 × 10-12 at |