Atmospheres to PSI
Convert atmospheres to psi instantly, with a reference table.
Atmospheres to PSI at a glance
Atmospheres to PSI is a free online converter you can use right now to convert atmospheres to psi instantly, with a reference table โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Unit Conversions
Atmospheres to PSI conversion table
| Atmospheres (atm) | PSI (psi) |
|---|---|
| 1 atm | 14.695949 psi |
| 2 atm | 29.391898 psi |
| 3 atm | 44.087846 psi |
| 5 atm | 73.479744 psi |
| 10 atm | 146.95949 psi |
| 25 atm | 367.39872 psi |
| 50 atm | 734.79744 psi |
| 100 atm | 1,469.5949 psi |
| 500 atm | 7,347.9744 psi |
| 1000 atm | 14,695.949 psi |
About Atmospheres to PSI
Convert atmospheres to psi instantly, with a reference table of common values. The factor is exact: 1 atm = 14.695948776 psi.
A reference conversion used in diving and chemistry, relating a pressure expressed as multiples of atmospheric pressure to a practical gauge reading.
The standard atmosphere is defined as exactly 101,325 pascals โ a reference value representing typical sea-level pressure rather than a measurement of it on any given day. It is used in chemistry, physics and diving as a convenient reference for expressing pressure as a multiple of everyday conditions. One atmosphere is 14.7 psi or 1.013 bar, and pressure roughly doubles at 10 metres underwater.
Worked through with real numbers: 1 atm is 14.696 psi, 15 atm is 220.439 psi, 30 atm is 440.878 psi.
As for the other side of the conversion: car tyres are typically inflated to 30 to 35 psi, and atmospheric pressure at sea level is about 14.7 psi.
Pressure is force divided by area, so every pressure unit combines two other units. The values cluster near everyday atmospheric pressure โ about 14.7 psi, 1.013 bar or 101.3 kPa โ because most practical scales were built around it.
How to use Atmospheres to PSI
- Enter the number of atmospheres you want to convert.
- The equivalent in psi appears instantly โ there is no button to press.
- Check the reference table for common Atmospheres to PSI values.
Frequently asked questions
How do I convert atmospheres to psi?
Multiply your atmospheres figure by 14.695948776 to get psi โ or type a value above and read the answer straight off.
How many psi are in one atmosphere?
1 atm = 14.695948776 psi.
When would I need to convert atmospheres to psi?
A reference conversion used in diving and chemistry, relating a pressure expressed as multiples of atmospheric pressure to a practical gauge reading.
What is a atmosphere, exactly?
The standard atmosphere is defined as exactly 101,325 pascals โ a reference value representing typical sea-level pressure rather than a measurement of it on any given day. One atmosphere is 14.7 psi or 1.013 bar, and pressure roughly doubles at 10 metres underwater.
Where is the psi actually used?
It is the standard for tyre pressure, hydraulics and compressed gas in the United States, and appears on tyre gauges worldwide. Car tyres are typically inflated to 30 to 35 psi, and atmospheric pressure at sea level is about 14.7 psi.
Is there anything tricky about pressure conversions?
Pressure is force divided by area, so every pressure unit combines two other units. The values cluster near everyday atmospheric pressure โ about 14.7 psi, 1.013 bar or 101.3 kPa โ because most practical scales were built around it.
Is this converter accurate?
Yes. It uses the exact standard factor of 1 atm = 14.695948776 psi, and the conversion runs in your browser so nothing is uploaded.