Convert Inches of Mercury to Terapascals
Convert Inches of Mercury (inHg) to Terapascals (TPa) instantly and accurately.
Conversion Formula
TPa = inHg × 3.386388640e-9
About Inches of Mercury
One inch of mercury (inHg) ≈ 3,386 Pa - the primary barometric pressure unit in US aviation and meteorology. ASOS weather stations, METARs, and altimeter settings in the US report in inHg. Standard sea-level pressure is 29.92 inHg. Altimeters are set to local QNH in inHg to maintain altitude reference. US barometers for home weather stations display inHg. Typical pressure range: 28.5-31.0 inHg in continental weather systems. Record low: ~25.70 inHg (Typhoon Tip, 1979). 1 inHg = 3,386.39 Pa.
About Terapascals
A terapascal (TPa) = 10¹² Pa = 10 Mbar - pressures in giant planet cores and at the frontier of high-energy-density physics. Jupiter's centre: ~40-70 TPa; Saturn's: ~10 TPa. Earth's inner core: ~0.35 TPa; core-mantle boundary: ~0.14 TPa. Laser-driven ramp and shock compression at NIF approaches TPa regimes for fusion implosion capsule research. Hydrogen is predicted to become a superconducting metal at ~0.5-5 TPa. Understanding TPa equations of state is critical for modelling exoplanet interiors. 1 TPa = 10¹² Pa.
Quick Reference Table
| Inches of Mercury (inHg) | Terapascals (TPa) |
|---|---|
| 1 inHg | 3.386 × 10-9 TPa |
| 2 inHg | 6.773 × 10-9 TPa |
| 5 inHg | 1.693 × 10-8 TPa |
| 10 inHg | 3.386 × 10-8 TPa |
| 25 inHg | 8.466 × 10-8 TPa |
| 50 inHg | 1.693 × 10-7 TPa |
| 100 inHg | 3.386 × 10-7 TPa |