Pressure converter

How is Pressure Converter: Pa, bar, psi, atm and mmHg calculated?

Use P = F/A; 1 bar = 100000 Pa. Convert pressure units with exact and conventional factors. Compare bar with atm, and understand why gauge and absolute pressure need a reference.

Sources: nist.gov [1]

How do I calculate this example: 1 bar?

100 kPa ≈ 14.50377377 psi. This is a calculated example under the model stated above; it is not a measured component specification.

Which units does Pressure Converter: Pa, bar, psi, atm and mmHg use?

Pa, kPa, MPa, bar, mbar, psi, atm, Torr, mmHg. Convert prefixes before substituting values; keep the input and output units attached to every number.

Sources: nist.gov [1]

Are bar and atm the same?

No. 1 bar = 100000 Pa, while 1 standard atmosphere = 101325 Pa. Therefore 1 atm = 1.01325 bar.

Sources: nist.gov [1]

Are psig and psia the same?

No. psig is relative to ambient pressure; psia is relative to vacuum. Add the actual ambient pressure to gauge pressure to obtain absolute pressure.

Sources: nist.gov [1]

Can I convert Pa directly to N?

Area is required: F = P × A. At uniform 100 kPa over 0.01 m², force is 1000 N; unit conversion alone cannot supply the area.

Sources: nist.gov [1]