How many pascals are in an atmosphere?
One standard atmosphere equals exactly 101,325 Pa.
Pressure Converter
Convert pascals, kilopascals, bars, PSI, atmospheres, and mmHg.
Calculations happen locally. We do not send your values to our server.
Example
1 bar equals 100 kPa or approximately 14.5038 psi.
Calculation method
All pressure values normalize to pascals, then divide by the target unit factor.
Important notes
These are pressure-unit conversions only and do not adjust for altitude or gauge versus absolute reference.
Frequently asked questions
Is psi gauge or absolute?
PSI is only a unit; gauge or absolute depends on the measurement reference.
What mmHg factor is used?
The converter uses approximately 133.322387415 Pa per mmHg.