Pascals (Pa) to Pounds per square inch (psi) Conversion
Pascals
The pascal (Pa) is the SI derived unit of pressure, defined as one newton per square metre (N/m²), named after French mathematician Blaise Pascal who studied fluid pressure in the 17th century. Standard atmospheric pressure at sea level is 101,325 Pa (101.3 kPa). The pascal is a small unit for everyday use — a gentle breeze exerts approximately 1 Pa of dynamic pressure — so kilopascals (kPa) and megapascals (MPa) are more common in practical engineering contexts.
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.
| Pascals (Pa) | Pounds per square inch (psi) |
|---|---|
| 0.1 Pa | 1.4503773773022E-5 psi |
| 1 Pa | 0.00014503773773022 psi |
| 2 Pa | 0.00029007547546043 psi |
| 3 Pa | 0.00043511321319065 psi |
| 5 Pa | 0.00072518868865108 psi |
| 10 Pa | 0.0014503773773022 psi |
| 20 Pa | 0.0029007547546043 psi |
| 30 Pa | 0.0043511321319065 psi |
| 50 Pa | 0.0072518868865108 psi |
| 100 Pa | 0.014503773773022 psi |
| 1000 Pa | 0.14503773773022 psi |
Frequently Asked Questions (FAQ)
How many pounds per square inch are in 1 pascals?
1 pascals (Pa) is exactly 0.000145 pounds per square inch (psi).
How do I convert pascals to pounds per square inch?
Multiply the value in pascals by 0.000145 to get the result in pounds per square inch. Or use the converter above — type any number and see the result instantly.