Convert Petapascals to Hectopascals
Convert Petapascals (PPa) to Hectopascals (hPa) instantly and accurately.
Conversion Formula
hPa = PPa × 10000000000000
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.
About Hectopascals
A hectopascal (hPa) = 100 Pa = 1 mbar - the WMO-official SI-compatible meteorological pressure unit since 1986, replacing millibar with no numerical change. All modern surface observations (METAR, SYNOP), digital barometers, aviation weather, and weather apps report in hPa. QNH altimeter settings outside North America are in hPa. ICAO standard sea-level pressure is 1013.25 hPa. Continental high-pressure record exceeds 1084 hPa; Typhoon Tip (1979) holds the low record at ~870 hPa. 1 hPa = 100 Pa.
Quick Reference Table
| Petapascals (PPa) | Hectopascals (hPa) |
|---|---|
| 1 PPa | 1 × 1013 hPa |
| 2 PPa | 2 × 1013 hPa |
| 5 PPa | 5 × 1013 hPa |
| 10 PPa | 1 × 1014 hPa |
| 25 PPa | 2.5 × 1014 hPa |
| 50 PPa | 5 × 1014 hPa |
| 100 PPa | 1 × 1015 hPa |