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PSI to Atmosphere

Convert psi to atm quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.

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CONVERTED RESULT—
Decimal places
CONVERSION RULE

1 psi equals approximately 0.068046 atm.

How to use the PSI to Atmosphere

  1. Enter the number you want to convert.
  2. Confirm the source unit shown beside the input.
  3. Choose decimal precision if you need more or less detail.
  4. Read the converted result.
  5. Copy the result when you need to use it elsewhere.

How the conversion works

1 psi equals approximately 0.068046 atm.

For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.

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Common psi to atm conversions

psiatm
1 psi0.068046 atm
2 psi0.136092 atm
5 psi0.34023 atm
10 psi0.68046 atm
20 psi1.360919 atm
50 psi3.402298 atm

Example

For example, entering 1 psi gives approximately 0.068046 atm using the rule above. Change the input to test your own value.

Frequently asked questions

The PSI to Atmosphere converts a value from psi to atm using the conversion relationship described on this page.
Enter your value, review the source and destination units, choose the decimal precision and read or copy the result.
1 psi equals approximately 0.068046 atm.
Use enough precision for your purpose. Everyday estimates usually need fewer decimal places; technical work may require more.
It can be a useful reference calculation, but safety-critical, regulated, contractual or specialized work should be verified against the applicable authoritative standard.

Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.

Page reviewed: August 24, 2026.