Atmospheres to PSI
Convert atmospheres (atm) to psi (psi) instantly — with formula and reference table.
atm
psi
Quick answer: 1 atm = 14.695949 psi. To convert atmospheres to psi, multiply by atm × 14.695949.
Converting atmospheres to psi
This converter changes a value in atmospheres (atm) into psi (psi). One atmosphere equals 14.695949 psi. One standard atmosphere equals 14.696 pounds per square inch. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
psi = atm × 14.695949
Example
Convert 10 atm to psi: 10 × 14.695949 = 146.959488 psi.
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 | 146.959488 psi |
| 20 atm | 293.918976 psi |
| 25 atm | 367.398719 psi |
| 50 atm | 734.797439 psi |
| 100 atm | 1469.594878 psi |
How to use this converter
- Enter a value in the atmospheres (atm) field.
- Read the converted value in psi (psi) below.
- Type into the psi field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many psi are in an atmosphere?
1 atm equals 14.696 psi.
How do I convert 2 atm to psi?
2 times 14.696 = 29.4 psi.
What is atmospheric pressure at sea level?
About 1 atm, or 14.7 psi, or 101.3 kPa.