Pressure Converter
Convert pressure among Pa, kPa, MPa, bar, atm, psi, and mmHg using pascals as the reference.
How to use
- Keep the source gauge/absolute context unchanged, enter the pressure, and select units such as Pa, bar, atm, psi, or mmHg.
Capabilities and scope
Compare the SI pascal with non-SI pressure units commonly seen in engineering, weather, and tire specifications.
How it works
The reference factors include bar=100,000 Pa, atm=101,325 Pa, psi≈6894.757293 Pa, and mmHg≈133.322387 Pa.
Example
1 atm is 101.325 kPa, or about 14.6959 psi.
Useful for
- Compare tire pressure in psi and kPa
- Convert process pressure between bar and MPa
- Express atmospheric pressure in pascals
Before you use it
- It does not automatically reconcile gauge versus absolute pressure. You must know the reference used by the source value.
Standards and references
Frequently asked questions
Can I directly convert gauge psi to absolute atm?
The tool only changes units; it does not add/subtract atmospheric pressure for gauge-to-absolute conversion.