Convert Barye to Centimeters of Mercury
Convert Barye (Ba) to Centimeters of Mercury (cmHg) instantly and accurately.
Conversion Formula
cmHg = Ba × 7.500615758e-5
About Barye
The barye (Ba) is the CGS unit of pressure - 1 dyne/cm² = exactly 0.1 Pa = 1 µbar. Standard atmosphere = 1,013,250 Ba. It dominated physics and laboratory science from the mid-19th century until SI adoption. Legacy acoustic CGS literature used 1 barye (0.1 Pa) as the underwater reference pressure, creating a 100 dB offset versus the modern 1 µPa reference - a critical correction when comparing historical and modern underwater acoustics databases. Still encountered in classical fluid mechanics derivations and early 20th-century meteorological literature. 1 Ba = 0.1 Pa.
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
| Barye (Ba) | Centimeters of Mercury (cmHg) |
|---|---|
| 1 Ba | 7.501 × 10-5 cmHg |
| 2 Ba | 0.000150012 cmHg |
| 5 Ba | 0.000375031 cmHg |
| 10 Ba | 0.000750062 cmHg |
| 25 Ba | 0.00187515 cmHg |
| 50 Ba | 0.00375031 cmHg |
| 100 Ba | 0.00750062 cmHg |