Convert Torr to Barye
Convert Torr (Torr) to Barye (Ba) instantly and accurately.
Conversion Formula
Ba = Torr × 1333.223684
About Torr
The torr is defined as exactly 1/760 of a standard atmosphere ≈ 133.322 Pa - effectively replacing mmHg with an exact definition. Named after Evangelista Torricelli (1608-1647), inventor of the barometer. Vacuum science universally uses torr: rough vacuum 760-1 torr; medium vacuum 1-10⁻³ torr; high vacuum 10⁻³-10⁻⁷ torr; ultra-high vacuum below 10⁻⁹ torr. UHV systems for surface science, particle accelerator beam tubes, and space simulation chambers reach 10⁻¹¹-10⁻¹² torr. 1 torr = 133.322 Pa.
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.
Quick Reference Table
| Torr (Torr) | Barye (Ba) |
|---|---|
| 1 Torr | 1333.22 Ba |
| 2 Torr | 2666.45 Ba |
| 5 Torr | 6666.12 Ba |
| 10 Torr | 13332.2 Ba |
| 25 Torr | 33330.6 Ba |
| 50 Torr | 66661.2 Ba |
| 100 Torr | 133322 Ba |