Convert Pounds per square inch to atmospheres
1 pound per square inch = 0.068046 atmospheres · atm = psi ÷ 14.69594878
When you need this conversion
This conversion goes from pounds per square inch, the pressure unit used in the US, to atmospheres, pressure relative to sea level, used in diving and chemistry. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
Pounds per square inch to atmospheres conversion table
| Pounds per square inch (psi) | Atmospheres (atm) |
|---|---|
| 1 psi | 0.068046 atm |
| 2 psi | 0.136092 atm |
| 3 psi | 0.204138 atm |
| 5 psi | 0.34023 atm |
| 10 psi | 0.68046 atm |
| 15 psi | 1.0207 atm |
| 20 psi | 1.3609 atm |
| 25 psi | 1.7011 atm |
| 50 psi | 3.4023 atm |
| 75 psi | 5.1034 atm |
| 100 psi | 6.8046 atm |
| 250 psi | 17.0115 atm |
| 500 psi | 34.023 atm |
| 1,000 psi | 68.046 atm |
The formula
atm = psi ÷ 14.69594878Because both units measure pressure, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Atmospheres to pounds per square inch →Related pressure conversions
- Bars to atmospheres
- Atmospheres to bars
- Pascals to atmospheres
- Kilopascals to atmospheres
- Pounds per square inch to pascals
- Pounds per square inch to kilopascals
- Pounds per square inch to bars
- Pounds per square inch to torr
- Torr to atmospheres
- Pascals to kilopascals
- Pascals to bars
- Pascals to pounds per square inch
Frequently asked questions
- How many atmospheres are in a pound per square inch?
- There are 0.068046 atmospheres in 1 pound per square inch. The formula is atm = psi ÷ 14.69594878.
- How do you convert pounds per square inch to atmospheres?
- Use the formula atm = psi ÷ 14.69594878. For example, 10 pounds per square inch equals 0.68046 atmospheres.
- Is the pounds per square inch to atmospheres conversion exact?
- Yes. Pounds per square inch and atmospheres are both units of pressure, related by an exact defined factor. Displayed results are rounded for readability.
- What is psi short for?
- psi is the standard symbol for pound per square inch. atm is the symbol for atmosphere.