Convert Bars to Hectopascals
Convert Bars (bar) to Hectopascals (hPa) instantly and accurately.
Conversion Formula
hPa = bar × 1000
About Bars
A bar = exactly 100,000 Pa ≈ 0.987 atm - the world standard for industrial pressure outside North America. Hydraulic systems, pneumatic equipment, gas cylinders, dive computers, and tyre gauges in Europe and Asia use bar. Scuba diving: +1 bar per 10 m depth; at 40 m recreational limit = 5 bar absolute. European tyre pressure labels show bar alongside kPa. Industrial processes: steam at 10-50 bar; high-pressure reactors 100-300 bar; water-jet cutting 1,000-4,000 bar. 1 bar = 100,000 Pa = 14.504 psi.
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
| Bars (bar) | Hectopascals (hPa) |
|---|---|
| 1 bar | 1000 hPa |
| 2 bar | 2000 hPa |
| 5 bar | 5000 hPa |
| 10 bar | 10000 hPa |
| 25 bar | 25000 hPa |
| 50 bar | 50000 hPa |
| 100 bar | 100000 hPa |