Pounds per square inch to pascals
Multiply pounds per square inch by 6,894.7573 to get pascals.
30 psi = 206,842.7188 Pa
How to convert pounds per square inch to pascals
The pascal is the SI unit of pressure, one newton per square metre. The pound per square inch is pounds-force per square inch, exactly 6894.757293168 pascals.
Worked example — 30 psi: 30 × 6,894.7573 = 206,842.7188 Pa.
Pounds per square inch to pascals table
| Pounds per square inch | Pascals |
|---|---|
| 1 psi | 6,894.7573 Pa |
| 5 psi | 34,473.7865 Pa |
| 10 psi | 68,947.5729 Pa |
| 20 psi | 137,895.1459 Pa |
| 30 psi | 206,842.7188 Pa |
| 50 psi | 344,737.8647 Pa |
| 100 psi | 689,475.7293 Pa |
| 200 psi | 1,378,951.4586 Pa |
| 500 psi | 3,447,378.6466 Pa |
Reverse and related
About pounds per square inch and pascals
Pound per square inch (psi)
1 psi = 6,894.7573 PaDefinition. Pounds-force per square inch, exactly 6894.757293168 pascals
History and origin
The pound per square inch comes from the imperial system, expressing pressure as pounds-force spread over a square inch. It equals about 6895 pascals.
Current use
Psi is the everyday pressure unit in the United States for tyre pressure, plumbing and compressed air.
Source: NIST SP 811, App. B; ISO 80000-4. Exact SI values are definitional (bar = 10⁵ Pa, atm = 101 325 Pa) or derived from the pound (NIST HB 44) and standard gravity 9.80665 m/s² (psi)
Pascal (Pa)
1 Pa = 0.000145038 psiDefinition. The SI unit of pressure, one newton per square metre
History and origin
The pascal is the SI unit of pressure, one newton per square metre, named after the French scientist Blaise Pascal. It is a small unit, so multiples like the kilopascal are common.
Current use
Pascals are used in physics and for fine pressure measurements.
Source: NIST SP 811, App. B; ISO 80000-4. Exact SI values are definitional (bar = 10⁵ Pa, atm = 101 325 Pa) or derived from the pound (NIST HB 44) and standard gravity 9.80665 m/s² (psi)
Where people use this
Pounds per square inch: tyre pressure in the US, plumbing, compressed air. Pascals: physics, fine measurements. 1 psi is about 6895 Pa.
Every value is carried to full double precision; the display is rounded.
Both units are defined in NIST SP 811, App. B; ISO 80000-4. Exact SI values are definitional (bar = 10⁵ Pa, atm = 101 325 Pa) or derived from the pound (NIST HB 44) and standard gravity 9.80665 m/s² (psi).
Questions people ask
How many pascals is 1 psi?
One psi is about 6895 pascals (6894.76 Pa).
How many kPa is 1 psi?
One psi is about 6.9 kPa.
How many pascals is 30 psi?
30 psi is about 206,843 Pa.