Pressure Converter
Pressure ratings appear on pneumatic tools, hydraulic benders, compressed air systems, and HVAC equipment that electricians connect and maintain. US specifications typically use PSI (pounds per square inch), while international equipment may reference kilopascals (kPa), bar, or atmospheres (atm).
Enter a pressure value in PSI (or select a different input unit) and this converter instantly displays the equivalent in kPa, bar, and atm. All conversions use standard factors through a PSI base unit.
Conversion Factors
| Unit | Per PSI |
|---|---|
| 1 kPa | 0.145038 PSI |
| 1 bar | 14.5038 PSI |
| 1 atm | 14.6959 PSI |
Frequently Asked Questions
What is PSI and how does it relate to other pressure units?
PSI (pounds per square inch) is the standard pressure unit in the US. 1 PSI equals approximately 6.89476 kPa, 0.0689476 bar, and 0.068046 atm. It measures force per unit area and is used for pneumatic tools, hydraulic systems, and compressed air ratings.
When do electricians need to convert pressure units?
Electricians encounter pressure units when working with pneumatic conduit fishing tools, hydraulic benders, compressed air systems, and HVAC electrical connections. Equipment from different countries may rate pressure in bar or kPa instead of PSI.
What is the difference between bar and atm?
Bar and atmosphere (atm) are both metric pressure units. 1 bar equals 100,000 Pascals, while 1 atm equals 101,325 Pascals. They are very close in value: 1 atm is approximately 1.01325 bar. Bar is commonly used in European industrial specifications.