Convert Pascals to Petapascals
Convert Pascals (Pa) to Petapascals (PPa) instantly and accurately.
Conversion Formula
PPa = Pa × 1.000000000e-15
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 Petapascals
A petapascal (PPa) = 10¹⁵ Pa - pressures found in stellar interiors. The Sun's centre is ~25 PPa, sustained by radiation pressure from nuclear fusion balanced against gravity. White dwarf stars: ~10⁴ PPa (electron degeneracy). Neutron stars: ~10⁹-10¹⁰ PPa, where nuclear structure fails and neutrons drip from nuclei at ~4 × 10⁸ PPa (the neutron drip line). The hadron-quark phase transition in the densest neutron star cores is estimated at 10¹⁰-10¹² PPa. No laboratory experiment can approach petapascal pressures. 1 PPa = 10¹⁵ Pa.
Quick Reference Table
| Pascals (Pa) | Petapascals (PPa) |
|---|---|
| 1 Pa | 1 × 10-15 PPa |
| 2 Pa | 2 × 10-15 PPa |
| 5 Pa | 5 × 10-15 PPa |
| 10 Pa | 1 × 10-14 PPa |
| 25 Pa | 2.5 × 10-14 PPa |
| 50 Pa | 5 × 10-14 PPa |
| 100 Pa | 1 × 10-13 PPa |