Convert Hectopascals to Pascals
Convert Hectopascals (hPa) to Pascals (Pa) instantly and accurately.
Conversion Formula
Pa = hPa × 100
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.
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.
Quick Reference Table
| Hectopascals (hPa) | Pascals (Pa) |
|---|---|
| 1 hPa | 100 Pa |
| 2 hPa | 200 Pa |
| 5 hPa | 500 Pa |
| 10 hPa | 1000 Pa |
| 25 hPa | 2500 Pa |
| 50 hPa | 5000 Pa |
| 100 hPa | 10000 Pa |