ATM to PSI Converter
Convert atmospheres to psi and back, plus bar and kilopascals.
Independently verified for accuracy
Calculator by Toolsloft ↗- Result
- 14.695949 Pounds per square inch (psi)
- Conversion
- 1 Atmospheres (atm) = 14.695949 Pounds per square inch (psi)
Convert atmospheres to psi, a common step in chemistry, diving, and physics problems where pressure is stated in atmospheres but you need it in psi. Bar and kilopascals are included too.
How this is calculated
One standard atmosphere is exactly 101325 pascals and one psi is about 6894.76 pascals, so one atmosphere is about 14.6959 psi. Atmospheres are multiplied by 14.6959 to get psi.
How to use
- Enter the pressure in atmospheres.
- Keep atm to psi, or press Swap for psi to atm.
- Read the result in psi.
Examples
- One atmosphere:
1 atm = 14.695949 psi - Two atmospheres:
2 atm = 29.391898 psi - Atmosphere to bar:
1 atm = 1.01325 bar
FAQ
- How many psi is one atmosphere?
- One standard atmosphere is about 14.6959 psi, which is close to normal sea-level air pressure.
- Is one atmosphere the same as one bar?
- Almost. One atmosphere is 1.01325 bar, so an atmosphere is slightly larger than a bar.