Convert Centimeters of Mercury to Terapascals
Convert Centimeters of Mercury (cmHg) to Terapascals (TPa) instantly and accurately.
Conversion Formula
TPa = cmHg × 1.333223874e-9
About Centimeters of Mercury
One centimetre of mercury (cmHg) = 10 mmHg ≈ 1,333.22 Pa. Historical medical and physiological literature used cmHg for intracardiac and intravascular pressures before mmHg became universal. Left ventricular systolic pressure ~12 cmHg; pulmonary artery systolic 2-3 cmHg. Some older European cardiological textbooks and pre-1970s surgical literature report pressures in cmHg. Central venous pressure, cerebral perfusion pressure, and intra-abdominal pressure are occasionally cited in cmHg in legacy datasets. 1 cmHg = 1,333.22 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
| Centimeters of Mercury (cmHg) | Terapascals (TPa) |
|---|---|
| 1 cmHg | 1.333 × 10-9 TPa |
| 2 cmHg | 2.666 × 10-9 TPa |
| 5 cmHg | 6.666 × 10-9 TPa |
| 10 cmHg | 1.333 × 10-8 TPa |
| 25 cmHg | 3.333 × 10-8 TPa |
| 50 cmHg | 6.666 × 10-8 TPa |
| 100 cmHg | 1.333 × 10-7 TPa |