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PSI to Atmospheres Converter

Convert PSI to atmospheres and atm to PSI instantly. Bidirectional pressure converter with formula and common values.

PSI to Atmospheres: 1 psi equals 0.068046 atm. To convert psi to atmospheres, multiply by 0.068046 (atm = psi × 0.068046). For example, 10 psi = 0.68046 atm.

14.7 psi = 1 atm

atm = psi × 0.068046

How to Convert PSI to Atmospheres

To convert from psi to atmospheres, multiply the value by 0.068046. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • PSI to Atmospheres: atm = psi × 0.068046
  • Atmospheres to PSI: psi = atm ÷ 0.068046
PSI to Atmospheres conversion scale — a dual ruler showing 1 psi equals .068 atm.
PSI to Atmospheres conversion scale (psi to atm).

PSI to Atmospheres Conversion Chart

PSI (psi)Atmospheres (atm)
0.10.006805
0.250.017011
0.50.034023
10.068046
20.136092
30.204138
50.34023
100.68046
201.36092
251.70115
503.4023
1006.8046
25017.0115
100068.046

Understanding the Units

What is a PSI?

One pound-force per square inch (psi) equals approximately 6,894.757 pascals.

Common contexts: tire pressure, plumbing, pneumatic systems (US).

What is an Atmosphere?

A standard atmosphere equals exactly 101,325 pascals — defined as the average atmospheric pressure at sea level.

Common contexts: chemistry, reference conditions.

Real-World Reference Points

Item PSI (psi) Atmospheres (atm)
Car tire (typical)322.1775
US household water503.4023
Bicycle road tire1006.8046

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FAQ

How many atmospheres are in one PSI?

One PSI equals approximately 0.068046 atmospheres. It takes about 14.696 PSI to equal one atmosphere.

How do I convert PSI to atmospheres?

Divide the PSI value by 14.696 (or multiply by 0.068046). For example, 35 psi × 0.068046 = 2.382 atm.

What is 14.7 PSI in atmospheres?

14.7 PSI is approximately 1.0003 atmospheres, essentially one standard atmosphere. This is why 14.7 psi is often cited as atmospheric pressure.

How do I convert tire pressure from PSI to atm?

Divide tire pressure by 14.696. A tire at 32 psi is at 2.177 atm absolute, or about 1.177 atm gauge pressure above the surrounding atmosphere.

How many atmospheres are in 1 psi?

1 psi equals 0.068046 atm.

How do you convert psi to atmospheres?

Multiply the psi value by 0.068046. Formula: atm = psi × 0.068046.

How many atmospheres are in 5 psi?

5 psi = 0.34023 atm.

How do you convert atmospheres back to psi?

Use the inverse formula: psi = atm ÷ 0.068046. For example, 1 atm = 14.695941 psi.

What is the difference between PSI and Atmospher?

One pound-force per square inch (psi) equals approximately 6,894.757 pascals. A standard atmosphere equals exactly 101,325 pascals — defined as the average atmospheric pressure at sea level.