Convert Centimeters of Mercury to Megapascals
Convert Centimeters of Mercury (cmHg) to Megapascals (MPa) instantly and accurately.
Conversion Formula
MPa = cmHg × 0.001333223874
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 Megapascals
A megapascal (MPa) = 10⁶ Pa = 10 bar - standard unit for mechanical stress, material strength, and high-pressure engineering. Structural material yield strengths: mild steel 250-550 MPa; high-strength steel to 2,000 MPa; carbon fibre composites 1,500-7,000 MPa tensile. Hydraulic press pressures 50-200 MPa. Mariana Trench floor ~110 MPa. Concrete compressive strength: 25-40 MPa (normal); up to 150 MPa (high-performance). Water-jet cutting: 200-600 MPa. Elastic moduli in FEM analysis are in MPa or GPa. 1 MPa = 10⁶ Pa = 145.0 psi.
Quick Reference Table
| Centimeters of Mercury (cmHg) | Megapascals (MPa) |
|---|---|
| 1 cmHg | 0.00133322 MPa |
| 2 cmHg | 0.00266645 MPa |
| 5 cmHg | 0.00666612 MPa |
| 10 cmHg | 0.0133322 MPa |
| 25 cmHg | 0.0333306 MPa |
| 50 cmHg | 0.0666612 MPa |
| 100 cmHg | 0.133322 MPa |