Kilopascal to PSI Converter
Converts kilopascal (kPa) to psi (psi) and back. The conversion factor is shown below every result.
How to Convert Kilopascal to PSI
What Is a Kilopascal?
The kilopascal (kPa) is an SI unit of pressure equal to 1,000 pascals.
What Is a PSI?
Pounds per square inch (PSI), a US customary pressure unit, equals exactly 6,894.757293168 pascals.
Common Kilopascal to PSI Reference Points
Real-world reference values for quick sanity checks.
| Item | Kilopascal (kPa) | PSI (approx.) |
|---|---|---|
| Typical home water pressure (approx.) | 350 kPa | 50.76 psi |
| A scuba tank fill (approx.) | 20000 kPa | 2,900.75 psi |
| Reference values are illustrative approximations for common items, not measured specifications. | ||
Kilopascal to PSI Conversion Table
| Kilopascal (kPa) | PSI (psi) |
|---|---|
| 10 kPa | 1.450377 psi |
| 50 kPa | 7.251887 psi |
| 100 kPa | 14.503774 psi |
| 200 kPa | 29.007548 psi |
| 300 kPa | 43.511321 psi |
| 350 kPa | 50.763208 psi |
| 500 kPa | 72.518869 psi |
| 1000 kPa | 145.037738 psi |
| Source: NIST SP 811, Appendix B (1 kPa = 1,000 Pa exactly) | |
Frequently Asked Questions
How do I convert kPa to PSI?
Multiply the kilopascal value by 0.1450377377. For example, 300 kPa × 0.1450377377 = 43.511 psi.
Is a kilopascal the same size regardless of what it's measuring?
Yes. The kilopascal is a pure unit of pressure (1,000 pascals) and converts to PSI the same way whether it's measuring tire pressure, blood pressure, or atmospheric pressure.
How does kPa relate to standard atmospheric pressure?
Standard atmospheric pressure is defined as 101.325 kPa (101,325 Pa), which converts to about 14.696 psi, the commonly cited "14.7 psi" figure for sea-level air pressure.
Related Pressure Converters
A good measuring tool marked in both kPa and psi removes the guesswork at the point of use.