Convert Pascals to Technical Atmospheres
Convert Pascals (Pa) to Technical Atmospheres (at) instantly and accurately.
Conversion Formula
at = Pa × 1.019716213e-5
About Pascals
The pascal (Pa) is the SI unit of pressure - 1 N/m², named after Blaise Pascal (1623-1662). Standard sea-level atmosphere ≈ 101,325 Pa. One pascal is very small: roughly the pressure of a single banknote lying flat. Pascal is simultaneously the SI unit for mechanical stress and elastic modulus: structural steel Young's modulus ~200 GPa; rubber shear modulus ~0.5 MPa. Used universally in fluid mechanics, acoustics, atmospheric science, and materials engineering. 1 Pa = 1 N/m².
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
| Pascals (Pa) | Technical Atmospheres (at) |
|---|---|
| 1 Pa | 1.02 × 10-5 at |
| 2 Pa | 2.039 × 10-5 at |
| 5 Pa | 5.099 × 10-5 at |
| 10 Pa | 0.000101972 at |
| 25 Pa | 0.000254929 at |
| 50 Pa | 0.000509858 at |
| 100 Pa | 0.00101972 at |