PSI to Baryes (psi to Ba)

1 pound per square inch equals 68,947.57293 baryes (rounded).

1 pound per square inch = 68,947.57293 baryes

How to convert pounds per square inch to baryes

To convert pounds per square inch to baryes, multiply the number of pounds per square inch by 68,947.57293. The factor is rounded to 10 significant digits. To go the other way, multiply baryes by 0.00001450377377 (rounded).

baryes = pounds per square inch × 68,947.57293

Example: 10 pounds per square inch = 689,475.7293 baryes.

About these units

Pound Per Square Inch (psi)

US & ImperialCurrent unit

About 6,894.757 pascals. The common unit for tire pressure, hydraulics and gas pipelines in the US.

Unlike most pressure units, psi has no namesake: it simply spells out its own definition, one pound-force acting on one square inch, and it is based on avoirdupois units. Used mainly in the United States, it is about 6.895 kilopascals.

The letters after the unit matter. Psia is measured against a vacuum, while psig is measured against the surrounding air, so at sea level, where the atmosphere is about 14.7 psi, you add that amount to a gauge reading to get an absolute one. A bicycle tire at 65 psig is therefore at 79.7 psia, and the label psid means a difference between two pressures rather than a reference to ambient air.

Typical automobile tires are listed at about 32 psig, and road racing bicycle tires at about 120 psig. One standard atmosphere is 14.696 psi, which gives a feel for how many multiples of sea-level air those tire pressures represent.

1 pound per square inch = 6,894.757293 pascals (approximately).

Sources: Wikipedia: Pounds per square inch; Wikipedia: Standard atmosphere (unit)

Barye (Ba)

CGS & old metricHistorical unit (no longer in standard use)

Exactly 0.1 pascal, the CGS unit of pressure (one dyne per square centimeter).

Tiny by everyday standards, the barye is the pressure unit of the centimeter-gram-second system. It is one dyne of force spread over one square centimeter, which works out to one gram per centimeter per second squared, or exactly 0.1 pascal. The same quantity has also been called a microbar, and older texts used other spellings and variants such as bary, barad and barrie.

Because of those names the barye is easy to confuse with the bar. In older usage the plain word bar sometimes meant one dyne per square centimeter, particularly in acoustics, a usage now regarded as incorrect. The modern bar is a million baryes, or 100,000 pascals. The barye fits the family of CGS units laid out after the 1873 British Association committee recommended the centimeter, gram and second, and it sits beside the dyne and the erg. It now survives mainly in older physics and acoustics literature. NIST lists the same value as dyne per square centimeter.

1 barye = 0.1 pascals (exactly).

Sources: Wikipedia: Barye; Wikipedia: Centimetre-gram-second system of units; NIST SP 811, Appendix B.8 conversion factors

Related conversions

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