Kilopascals (kPa) to Pounds per square inch (psi) Conversion
Kilopascals
The kilopascal (kPa) is a unit of pressure equal to exactly 1,000 pascals and is one of the most practical pressure units for everyday engineering. Standard atmospheric pressure is approximately 101.3 kPa. Tyre pressure is commonly specified in kPa in metric countries: a typical car tyre is inflated to 220–250 kPa. Blood pressure in clinical settings is measured in mmHg, but some medical devices express it in kPa (normal systolic ≈ 16 kPa).
Pounds per square inch
Pounds per square inch (psi) is a unit of pressure defined as one pound-force per square inch (approximately 6,894.76 Pa). It is the standard for tyre pressure, hydraulic systems, and gas cylinders in the United States. Standard atmospheric pressure is approximately 14.696 psi. In engineering, gauge pressure (psig — relative to atmosphere) is distinguished from absolute pressure (psia — relative to a perfect vacuum), a distinction critical in thermodynamics and fluid system design.
| Kilopascals (kPa) | Pounds per square inch (psi) |
|---|---|
| 0.1 kPa | 0.014503773773022 psi |
| 1 kPa | 0.14503773773022 psi |
| 2 kPa | 0.29007547546043 psi |
| 3 kPa | 0.43511321319065 psi |
| 5 kPa | 0.72518868865108 psi |
| 10 kPa | 1.4503773773022 psi |
| 20 kPa | 2.9007547546043 psi |
| 30 kPa | 4.3511321319065 psi |
| 50 kPa | 7.2518868865108 psi |
| 100 kPa | 14.503773773022 psi |
| 1000 kPa | 145.03773773022 psi |