Atmosphere to PSI Converter
Convert atmospheres to psis (atm to psi) instantly with this free online pressure converter. Enter any value in the Atmosphere field and get the equivalent in PSI immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.
The conversion factor is exact: 1 atm = 14.69594301 psi. To convert atmospheres to psis, multiply your Atmosphere value by 14.69594301. For example, 10 atm = 146.9594301 psi. You can also reverse the calculation: 1 psi = 0.06804599062 atm.
Quick conversion table
| Atmosphere (atm) | PSI (psi) |
|---|---|
| 1 atm | 14.69594301 psi |
| 5 atm | 73.47971503 psi |
| 10 atm | 146.9594301 psi |
| 25 atm | 367.3985751 psi |
| 50 atm | 734.7971503 psi |
| 100 atm | 1469.594301 psi |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the pressure category.
Formula
Atmosphere to PSI conversion: 1 atm = 14.69594301 psi psis = atmospheres × 14.69594301 1 psi = 0.06804599062 atm atmospheres = psis × 0.06804599062
Example
Example: Convert 10 atm to psi: 10 atm × 14.69594301 = 146.9594301 psi So, 10 atm is about 146.9594301 psi. To convert back, multiply by 0.06804599062: 146.9594301 psi × 0.06804599062 = 10 atm.
How to Use
- Enter the value you want to convert in the Atmosphere field
- The result in PSI appears instantly below
- Use the dropdown menus to change units if needed
- Click 'Swap Units' to reverse the conversion direction
- Copy the result or adjust the input for a new conversion
Frequently Asked Questions
How do I convert atmospheres to psis?
Enter the value in Atmosphere (atm) in the 'From' field. The equivalent in PSI (psi) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.
What is the formula to convert atm to psi?
1 atm = 14.69594301 psi, so psis = atmospheres × 14.69594301. To convert back, 1 psi = 0.06804599062 atm. The full formula and a worked example are shown on this page.
How many psis are in one Atmosphere?
1 atm = 14.69594301 psi.
Is this Atmosphere to PSI converter free?
Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.
Can I convert psis back to atmospheres?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other pressure unit for either field.
How accurate is the atm to psi conversion?
The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.