The bar is a metric unit of pressure equal to 100,000 pascals. It is commonly used in meteorology, automotive tyre specifications, and scuba diving.
\n
The pascal (Pa) is the SI unit of pressure, defined as one newton per square metre. It is the standard unit in scientific research and engineering calculations.
\n
Mathematically, the relationship is expressed as \\(1\,\\text{bar}=10^5\,\\text{Pa}\\). Therefore, to convert from bar to pascals you multiply by 100,000.
\n
\n
Industrial processes often monitor pressure in bar because the numbers are convenient.
\n
Laboratory measurements and simulations use pascals to stay consistent with SI.
The bar is a non‑SI metric unit equal to 100 kPa, while the pascal is the SI unit (1 Pa = 1 N·m⁻²). In practice, bar gives more manageable numbers for everyday pressures, whereas pascal is used for precise scientific work. The conversion is \\(1\,\\text{bar}=10^5\,\\text{Pa}\\).
\n
\n
\n
\n \n
\n
Use the factor 100 000 Pa per bar. Multiply the bar value by this factor: \(P_{Pa}=P_{bar}\times100000\). For example, 5 bar × 100 000 = 500 000 Pa.
\n
\n
"On fait la science avec des faits, comme on fait une maison avec des pierres ; mais une accumulation de faits n'est pas plus une science qu'un tas de pierres n'est une maison." "Science is built up of facts, as a house is built of stones; but an accumulation of facts is no more a science than a heap of stones is a house." — Henri Poincaré (French Mathematician, Theoretical Physicist & Mining Engineer)