Pascal Pa
About the Pascal
The pascal is a pressure of one newton per square metre, named after Blaise Pascal. It is a small unit: standard atmospheric pressure is 101,325 Pa, so weather maps use hectopascals and engineers use kilopascals and megapascals.
Related Units
Bar
bar1 bar = 100,000 Pa (exact)
The bar equals 100 kilopascals, close to but slightly less than one standard atmosphere of 101,325 Pa. Its submultiple...
Pound per square inch
psi≈ 6894.757 Pa
One psi is the pressure of one pound-force on one square inch, about 6894.757 pascals. Standard atmospheric pressure is...
Standard atmosphere
atm101,325 Pa (exact)
The standard atmosphere is exactly 101,325 pascals, roughly average sea-level air pressure. It was historically the...
Torr
Torr101,325/760 Pa ≈ 133.322 Pa
The torr is exactly 1/760 of a standard atmosphere, about 133.322 pascals. It is named after Evangelista Torricelli...