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Atmosphere to PSI

Convert atm to psi 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 atm equals approximately 14.6959 psi.

How to use the Atmosphere to PSI

  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 atm equals approximately 14.6959 psi.

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 atm to psi conversions

atmpsi
1 atm14.695949 psi
2 atm29.391898 psi
5 atm73.479744 psi
10 atm146.959488 psi
20 atm293.918976 psi
50 atm734.797439 psi

Example

For example, entering 1 atm gives approximately 14.695949 psi using the rule above. Change the input to test your own value.

Frequently asked questions

The Atmosphere to PSI converts a value from atm to psi 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 atm equals approximately 14.6959 psi.
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.