Convert Pounds per Square Inch to Barye
Convert Pounds per Square Inch (psi) to Barye (Ba) instantly and accurately.
Conversion Formula
Ba = psi × 68947.57293
About Pounds per Square Inch
One pound per square inch (psi) ≈ 6,894.76 Pa - the dominant pressure unit in US industry and consumer products. Car tyres: 32-36 psi; truck tyres 80-120 psi; bicycle road tyres 80-130 psi. Home water supply: 40-80 psi; residential maximum 80 psi per plumbing code. Compressed air tools: 90-150 psi. Steam autoclave sterilisation: 15-30 psi. The distinction between gauge (psig) and absolute (psia) pressure is critical: gauge pressure is relative to ambient; absolute = gauge + ~14.696 psi. 1 psi = 6,894.76 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
| Pounds per Square Inch (psi) | Barye (Ba) |
|---|---|
| 1 psi | 68947.6 Ba |
| 2 psi | 137895 Ba |
| 5 psi | 344738 Ba |
| 10 psi | 689476 Ba |
| 25 psi | 1723690 Ba |
| 50 psi | 3447380 Ba |
| 100 psi | 6894760 Ba |