Convert Pascals to Centimeters of Mercury
Convert Pascals (Pa) to Centimeters of Mercury (cmHg) instantly and accurately.
Conversion Formula
cmHg = Pa × 0.0007500615758
About Pascals
The pascal (Pa) is the SI unit of pressure - 1 N/m², named after Blaise Pascal (1623-1662). Standard sea-level atmosphere ≈ 101,325 Pa. One pascal is very small: roughly the pressure of a single banknote lying flat. Pascal is simultaneously the SI unit for mechanical stress and elastic modulus: structural steel Young's modulus ~200 GPa; rubber shear modulus ~0.5 MPa. Used universally in fluid mechanics, acoustics, atmospheric science, and materials engineering. 1 Pa = 1 N/m².
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.
Quick Reference Table
| Pascals (Pa) | Centimeters of Mercury (cmHg) |
|---|---|
| 1 Pa | 0.000750062 cmHg |
| 2 Pa | 0.00150012 cmHg |
| 5 Pa | 0.00375031 cmHg |
| 10 Pa | 0.00750062 cmHg |
| 25 Pa | 0.0187515 cmHg |
| 50 Pa | 0.0375031 cmHg |
| 100 Pa | 0.0750062 cmHg |