🔧 Pressure Converter
Convert between Pascal, bar, PSI, atm, and mmHg.
1 Pa = 0.001 kPa
All Conversions
Pascal
1 Pa
Kilopascal
0.001 kPa
Bar
1.0000e-5 bar
PSI
0.000145 psi
Atmosphere
9.8692e-6 atm
mmHg
0.007501 mmHg
Torr
0.007501 Torr
Frequently Asked Questions
What is the difference between PSI and bar?
PSI (pounds per square inch) and bar are both pressure units. 1 bar ≈ 14.5038 PSI. Bar is commonly used in Europe and science, while PSI is standard in the US. Standard atmospheric pressure is 14.696 PSI or 1.01325 bar.
What is atmospheric pressure?
Standard atmospheric pressure is 101,325 Pascals (1 atm), 1.01325 bar, 14.696 PSI, or 760 mmHg. This is the average pressure at sea level. Atmospheric pressure decreases with altitude.
What is a Pascal?
A Pascal (Pa) is the SI unit of pressure, defined as one newton per square meter. It's a relatively small unit — standard atmospheric pressure is 101,325 Pa. Kilopascals (kPa) are more commonly used in everyday applications.