Base idea
One pascal is one newton per square meter. Converters commonly normalize pressure through pascals, then divide by the target unit factor.
Engineering guide
How pressure units work
Pressure measures force applied over area. Different fields use different units, including pascal for SI work, bar for fluids and industry, PSI for US engineering, atmosphere for reference pressure, and mmHg for medical or lab contexts.
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Common pressure factors
1 bar = 100,000 Pa. 1 atm = 101,325 Pa. 1 PSI = 6,894.757293 Pa. 1 mmHg = 133.322387415 Pa.
Formula pattern
Convert source pressure to pascals, then convert pascals to the target pressure unit. Example: bar to PSI uses bar x 100,000 / 6,894.757293.