Convert Standard Atmosphere to Pound per Square Inch
Live bidirectional calculator for Standard Atmospheres (atm) and Pounds per Square Inch (psi) with verified formula and conversion charts.
Pressure8 units
How the Calculation Works (Linear Scaling)
Since 1 Standard Atmosphere = 14.695949 Pounds per Square Inch, multiply the value in Standard Atmospheres by 14.695949.
Standard Atmosphere to Pound per Square Inch Conversion Table
Precomputed values for quick reference and printing.
| Standard Atmosphere | Pound per Square Inch |
|---|---|
| 1 atm | 14.6959 psi |
| 2 atm | 29.3919 psi |
| 3 atm | 44.0878 psi |
| 4 atm | 58.7838 psi |
| 5 atm | 73.4797 psi |
| 6 atm | 88.1757 psi |
| 7 atm | 102.8716 psi |
| 8 atm | 117.5676 psi |
| 9 atm | 132.2635 psi |
| 10 atm | 146.9595 psi |
| 15 atm | 220.4392 psi |
| 20 atm | 293.919 psi |
| 25 atm | 367.3987 psi |
| 30 atm | 440.8785 psi |
| 40 atm | 587.838 psi |
| 50 atm | 734.7974 psi |
| 75 atm | 1102.1962 psi |
| 100 atm | 1469.5949 psi |
| Pound per Square Inch | Standard Atmosphere |
|---|---|
| 1 psi | 0.068 atm |
| 2 psi | 0.1361 atm |
| 3 psi | 0.2041 atm |
| 4 psi | 0.2722 atm |
| 5 psi | 0.3402 atm |
| 6 psi | 0.4083 atm |
| 7 psi | 0.4763 atm |
| 8 psi | 0.5444 atm |
| 9 psi | 0.6124 atm |
| 10 psi | 0.6805 atm |
| 15 psi | 1.0207 atm |
| 20 psi | 1.3609 atm |
| 25 psi | 1.7011 atm |
| 30 psi | 2.0414 atm |
| 40 psi | 2.7218 atm |
| 50 psi | 3.4023 atm |
| 75 psi | 5.1034 atm |
| 100 psi | 6.8046 atm |
About Standard Atmosphere (atm)
An internationally agreed reference pressure defined as exactly 101,325 pascals (1.01325 bar).
History: Originally established as the pressure exerted by 760 mm of mercury at sea level and 0 ยฐC.
Common Uses: Chemical thermodynamics, underwater diving depths (1 atm per 10m depth), and gas cylinders.
About Pound per Square Inch (psi)
The pressure resulting from a force of one pound-force applied to an area of one square inch (โ 6,894.757 Pa).
History: Dominant pressure unit in the British imperial and US customary systems.
Common Uses: Tire inflation, plumbing pipe ratings, air compressor tanks, and gas cylinder pressure.
โ Frequently Asked Questions
How many Pounds per Square Inch are in 1 Standard Atmosphere?
There are exactly 14.695949 Pounds per Square Inch in 1 Standard Atmosphere (1 atm = 14.695949 psi).
What is the formula to convert Standard Atmosphere to Pound per Square Inch?
The formula is: Pound per Square Inch = Standard Atmosphere ร 14.695949. Since 1 Standard Atmosphere = 14.695949 Pounds per Square Inch, multiply the value in Standard Atmospheres by 14.695949.
How do I convert 1 atm to psi manually?
To convert 1 atm to psi: apply the formula Pound per Square Inch = Standard Atmosphere ร 14.695949. Substituting gives: 1 ร 14.695949 = 14.6959 psi.