Convert Millimeters of Mercury to Gigapascals
Convert Millimeters of Mercury (mmHg) to Gigapascals (GPa) instantly and accurately.
Conversion Formula
GPa = mmHg × 1.333223874e-7
About Millimeters of Mercury
One millimetre of mercury (mmHg) = pressure from 1 mm of mercury at 0°C and standard gravity = 133.322 Pa. Clinical medicine worldwide uses mmHg for blood pressure (normal ~120/80 mmHg) and for gas partial pressures in physiology: arterial O₂ ~95-100 mmHg; CO₂ ~40 mmHg; alveolar O₂ ~104 mmHg. Ophthalmologists measure intraocular pressure in mmHg (normal 10-21; glaucoma risk above 21). Vacuum equipment ratings are also given in mmHg. 760 mmHg = 1 atm. 1 mmHg = 133.322 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
| Millimeters of Mercury (mmHg) | Gigapascals (GPa) |
|---|---|
| 1 mmHg | 1.333 × 10-7 GPa |
| 2 mmHg | 2.666 × 10-7 GPa |
| 5 mmHg | 6.666 × 10-7 GPa |
| 10 mmHg | 1.333 × 10-6 GPa |
| 25 mmHg | 3.333 × 10-6 GPa |
| 50 mmHg | 6.666 × 10-6 GPa |
| 100 mmHg | 1.333 × 10-5 GPa |