Atmospheres to pounds per square inch
Type a value in atm to get it in psi instantly.
That's 1.13× as much pressure as an espresso machine, while a fire hose is 1.18× higher. Spread over a fingertip, that is like resting 10.33 kg on it.
Convert the other way: psi to atm
What it means
How much pressure is that?
Tyre and tank figures are gauge pressure, measured above the surrounding air. Weather and altitude figures are absolute.
The math
How to convert atm to psi
To convert atmospheres to pounds per square inch, multiply by 14.6959.
Example: 10 atm × 14.6959 = 146.959 psi.
In the other direction, 1 psi = 0.068046 atm.
Every unit
Your pressure in every unit
Tables
atm to psi conversion table
| atm | psi |
|---|---|
| 0.5 atm | 7.34797 psi |
| 1 atm | 14.6959 psi |
| 1.5 atm | 22.0439 psi |
| 2 atm | 29.3919 psi |
| 2.5 atm | 36.7399 psi |
| 3 atm | 44.0878 psi |
| 4 atm | 58.7838 psi |
| 5 atm | 73.4797 psi |
| 10 atm | 146.959 psi |
| 15 atm | 220.439 psi |
| 20 atm | 293.919 psi |
| 30 atm | 440.878 psi |
| 50 atm | 734.797 psi |
| 100 atm | 1,469.59 psi |
psi to atm conversion table
| psi | atm |
|---|---|
| 0.5 psi | 0.034023 atm |
| 1 psi | 0.068046 atm |
| 1.5 psi | 0.102069 atm |
| 2 psi | 0.136092 atm |
| 2.5 psi | 0.170115 atm |
| 3 psi | 0.204138 atm |
| 4 psi | 0.272184 atm |
| 5 psi | 0.34023 atm |
| 10 psi | 0.68046 atm |
| 15 psi | 1.02069 atm |
| 20 psi | 1.36092 atm |
| 30 psi | 2.04138 atm |
| 50 psi | 3.4023 atm |
| 100 psi | 6.8046 atm |
Quick answers
Quick answers
- How many psi is 1 atm?
- 1 atm is 14.6959 psi.
- How many psi is 10 atm?
- 10 atm is 146.959 psi.
The units
About these units
Atmospheres (atm)
One standard atmosphere is defined as exactly 101,325 pascals: the average air pressure at sea level. Diving depth adds about one atmosphere every 10 meters.
Pounds per square inch (psi)
One psi is one pound of force on one square inch, about 6,895 pascals. US tyre gauges, compressors and plumbing all read in psi.
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