Pascals to psi
Type a value in pascals to see it in psi straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the pascals box.
- Read the result in psi as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
psi = Pa × 0.0001450377377
Multiply the value in pascals by 0.0001450377377 to get psi.
Example
To convert 25 Pa to psi: 25 × 0.0001450377377 = 0.00362594 psi.
Conversion table
| Pascals (Pa) | Psi (psi) |
|---|---|
| 1 | 0.000145038 |
| 2 | 0.000290075 |
| 3 | 0.000435113 |
| 5 | 0.000725189 |
| 10 | 0.00145038 |
| 20 | 0.00290075 |
| 25 | 0.00362594 |
| 50 | 0.00725189 |
| 100 | 0.0145038 |
| 250 | 0.0362594 |
| 500 | 0.0725189 |
| 1,000 | 0.145038 |
About the units
- Pascal
- The SI unit of pressure, equal to a force of one newton acting on one square meter.
- Psi
- One pound-force per square inch, about 6894.757 pascals from the exact definitions of the pound, inch and standard gravity.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many psi are in one pascal?
1 Pa = 0.000145038 psi exactly.
How do I convert pascals to psi?
Use psi = Pa × 0.0001450377377. For example, 25 Pa = 0.00362594 psi.
How many pascals are in one psi?
1 psi = 6,894.76 Pa.
What is the difference between gauge and absolute pressure?
Gauge pressure is measured from the surrounding air pressure, while absolute pressure starts from a perfect vacuum. These converters change the unit only, so a gauge reading stays a gauge reading.
Are torr and mmHg the same?
Almost. One torr is 101325/760 Pa, about 133.322368 Pa, and one conventional mmHg is 133.322387 Pa, a difference of less than one part per million. For everyday use you can treat them as equal.