Pressure conversion
1 standard atmosphere (atm) equals 14.695948775514 pound per square inch (psi). Enter any value below to convert from atm to psi.
Enter a value and choose units. Results update instantly.
1 atm = 14.6959487755 psi
| Unit | Value |
|---|---|
| Pascal Pa | 101,325 |
| Kilopascal kPa | 101.325 |
| Megapascal MPa | 0.101325 |
| Bar bar | 1.01325 |
| Millibar mbar | 1,013.25 |
| Standard atmosphere atm | 1 |
| Pound per square inch psi | 14.6959487755 |
| Torr Torr | 760 |
| Millimeter of mercury mmHg | 759.9998917256 |
| Inch of mercury inHg | 29.9212524019 |
Formula
Use this relationship for a direct conversion:
2 atm = 29.391897551 psi.
Conventional mercury-column units are not measurements adjusted for local temperature or gravity.
Quick reference
| Standard atmosphere (atm) | Pound per square inch (psi) |
|---|---|
| 0.01 | 0.1469594878 |
| 0.1 | 1.4695948776 |
| 1 | 14.6959487755 |
| 2 | 29.391897551 |
| 5 | 73.4797438776 |
| 10 | 146.9594877551 |
| 25 | 367.3987193879 |
| 50 | 734.7974387757 |
| 100 | 1,469.5948775514 |
| 1,000 | 14,695.9487755142 |
From unit
Exactly 101,325 pascals.
Symbol: atm
To unit
One pound-force per square inch.
Symbol: psi
Keep converting
Source
Definitions are checked against NIST SP 811: Pressure units. Calculations use full internal precision before display rounding.
View the complete pressure converterQuestions
Use the formula psi = atm x 14.695948775514. 1 standard atmosphere (atm) equals 14.695948775514 pound per square inch (psi).
Conventional mercury-column units are not measurements adjusted for local temperature or gravity.
