Kilopascals to Baryes (kPa to Ba)

1 kilopascal equals 10,000 baryes exactly.

1 kilopascal = 10,000 baryes

How to convert kilopascals to baryes

To convert kilopascals to baryes, multiply the number of kilopascals by 10,000. This factor is exact. To go the other way, multiply baryes by 0.0001.

baryes = kilopascals × 10,000

Example: 10 kilopascals = 100,000 baryes.

About these units

Kilopascal (kPa)

Metric (SI)Current unit

1,000 pascals. Used for tire pressures, weather reports in many countries and engineering.

Kilopascal is the form of the pascal that most people actually use. The pascal itself is very small, so outside meteorology the kilopascal became the common choice in most fields, and it equals one centibar. Medical elastography reports tissue stiffness in kPa, and Canada reports atmospheric pressure in kPa rather than hectopascals.

A standard atmosphere is 101.325 kPa. In 1982 IUPAC recommended a different reference for chemistry, a standard pressure of exactly 100 kPa, which split the older convention of 1 atm into two competing standards.

Blood pressure shows how the units line up. One mmHg is 0.13332 kPa, and a normal reading is below about 16.0 kPa systolic and 10.7 kPa diastolic, the same thing as the familiar 120 over 80 in millimeters of mercury.

1 kilopascal = 1,000 pascals (exactly).

Sources: Wikipedia: Pascal (unit); Wikipedia: Standard atmosphere (unit); Wikipedia: Millimetre of mercury

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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