How Many PSI in One Atmosphere?
Quick Answer
There are approximately 14.696 PSI in one standard atmosphere.
1 atm = 14.696 PSI
Understanding the Conversion
One standard atmosphere (atm) = 14.6959 PSI = 101.325 kPa = 760 mmHg. This value is the approximate air pressure at sea level and serves as a baseline for pressure measurements. Gauge pressure (psig) is relative to atmospheric; absolute pressure (psia) includes it.
Formula
1 atm = 14.696 PSI
Common Examples
| Description | Value |
|---|---|
| A car tire at 32 psig | 32 + 14.7 = 46.7 psia |
| Air at sea level | 14.696 PSI (1 atm) |
| Pressure at 10 m underwater | ≈29.4 PSI (2 atm) |
Quick Reference Table
Use this table for quick conversions between atmosphere and PSI:
| atmosphere | PSI |
|---|---|
| 1 | 14.696 |
| 2 | 29.392 |
| 5 | 73.48 |
| 10 | 146.96 |
| 25 | 367.4 |
| 50 | 734.8 |
| 100 | 1,469.6 |
Frequently Asked Questions
How Many PSI in One Atmosphere?
There are approximately 14.696 PSI in one standard atmosphere. One standard atmosphere (atm) = 14.6959 PSI = 101.325 kPa = 760 mmHg. This value is the approximate air pressure at sea level and serves as a baseline for pressure measurements. Gauge pressure (psig) is relative to atmospheric; absolute pressure (psia) includes it.
What is the formula to convert atmosphere to PSI?
The formula is: 1 atm = 14.696 PSI. To convert, multiply the number of atmospheres by 14.696 to get the equivalent in PSI.
How do I convert PSI to atmosphere?
To convert PSI to atmosphere, divide the number of PSI by 14.696. For example, 73.48 PSI equals 5 atmospheres.