Convert Millibars to Gigapascals
Convert Millibars (mbar) to Gigapascals (GPa) instantly and accurately.
Conversion Formula
GPa = mbar × 1.000000000e-7
About Millibars
A millibar (mbar) = 100 Pa = 1 hPa - the historically dominant meteorological pressure unit. Standard sea-level pressure is 1013.25 mbar. Hurricane intensity is characterised by central pressure: Category 5 storms typically below 920 mbar (US record: 892 mbar, 1935). Upper-air analysis levels - 850, 700, 500, 300, 200 mbar - appear throughout decades of archived meteorological data. Aircraft cabins are pressurised to ~750-800 mbar at cruise altitude. 'Weather bombs' see pressure fall 24+ mbar in 24 hours. 1 mbar = 100 Pa.
About Gigapascals
A gigapascal (GPa) = 10⁹ Pa = 10 kbar - the extreme-pressure unit for materials science and planetary physics. Bulk moduli: fused silica 72 GPa; iron 170 GPa; diamond 442 GPa (highest known). Earth's inner core: 330-360 GPa. Jupiter's core: ~40,000-70,000 GPa. NIF laser-shocked experiments create 100-100,000 GPa to reproduce planetary interior conditions. Metallic hydrogen is predicted to form above ~500 GPa and has been tentatively observed at 400-500 GPa in diamond anvil cells. 1 GPa = 10⁹ Pa = 10 kbar.
Quick Reference Table
| Millibars (mbar) | Gigapascals (GPa) |
|---|---|
| 1 mbar | 1 × 10-7 GPa |
| 2 mbar | 2 × 10-7 GPa |
| 5 mbar | 5 × 10-7 GPa |
| 10 mbar | 1 × 10-6 GPa |
| 25 mbar | 2.5 × 10-6 GPa |
| 50 mbar | 5 × 10-6 GPa |
| 100 mbar | 1 × 10-5 GPa |