Convert PSI to Atmospheres

Whether you need to express a value in atm instead of psi, this guide walks you through the exact steps. Pressure conversions appear in tire inflation, weather forecasting, scuba diving, and industrial engineering across pascals, bar, psi, and mmHg.

To convert, multiply the psi value by 0.068046. Written as an equation: atm = psi × 0.068046.

One psi equals approximately 0.068046 atm. This means you can multiply any psi value by 0.068046 to get the equivalent in atm.

Worked example: 5 psi = 0.34023 atm. Enter your own value in the converter above for instant results.

Common mistake: Tire pressure may be listed in psi, bar, or kPa depending on your gauge or vehicle manual — always match the unit your manufacturer specifies.

Bookmark this page for quick psi to atm conversions, or use the swap button to reverse the direction and convert atm back to psi.