Atmospheres to PSI Converter
Convert atmospheres (atm) to psi (psi) instantly. Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.
Result
- PSI
- 14.6959 psi
How to use the atmospheres to psi converter
- Enter the atmospheres (atm).
- The results update as you type, or press Calculate.
- Read the psi first, then the supporting figures below it.
Formula
PSI = atmospheres × 14.6959494004
Worked example
For example, with these inputs:
- Atmospheres (atm): 1
the calculator returns:
- PSI: 14.6959 psi
Atmospheres to PSI table
| Atmospheres | PSI |
|---|---|
| 1 atm | 14.6959 psi |
| 2 atm | 29.3919 psi |
| 5 atm | 73.4797 psi |
| 10 atm | 146.9595 psi |
| 20 atm | 293.919 psi |
| 25 atm | 367.3987 psi |
| 50 atm | 734.7975 psi |
| 100 atm | 1,469.59 psi |
| 250 atm | 3,673.99 psi |
| 500 atm | 7,347.97 psi |
| 1,000 atm | 14,695.95 psi |
About this conversion
Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
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 psi are in one atmosphere?
1 atm = 14.6959 psi.
How do I convert atm to psi?
PSI = atmospheres × 14.6959494004.