PSI to Atmospheres Converter
Convert psi (psi) to atmospheres (atm) instantly. Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.
Result
- Atmospheres
- 0.068046 atm
How to use the psi to atmospheres converter
- Enter the psi (psi).
- The results update as you type, or press Calculate.
- Read the atmospheres first, then the supporting figures below it.
Formula
Atmospheres = psi × 0.068045961
Worked example
For example, with these inputs:
- PSI (psi): 1
the calculator returns:
- Atmospheres: 0.068046 atm
PSI to Atmospheres table
| PSI | Atmospheres |
|---|---|
| 1 psi | 0.068046 atm |
| 2 psi | 0.136092 atm |
| 5 psi | 0.34023 atm |
| 10 psi | 0.68046 atm |
| 20 psi | 1.3609 atm |
| 25 psi | 1.7011 atm |
| 50 psi | 3.4023 atm |
| 100 psi | 6.8046 atm |
| 250 psi | 17.0115 atm |
| 500 psi | 34.023 atm |
| 1,000 psi | 68.046 atm |
About this conversion
Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Frequently asked questions
How many atmospheres are in one psi?
1 psi = 0.068046 atm.
How do I convert psi to atm?
Atmospheres = psi × 0.068045961.