psi to atmospheres
Convert pound per square inch to atmosphere — instant, free, with the formula shown.
How to convert pound per square inch to atmosphere
To convert pound per square inch to atmosphere, multiply by 0.06804596:
For example, 10 psi × 0.068046 = 0.68046 atm.
psi to atm conversion table
| psi (psi) | atmospheres (atm) |
|---|---|
| 1 psi | 0.068046 atm |
| 2 psi | 0.136092 atm |
| 5 psi | 0.34023 atm |
| 10 psi | 0.68046 atm |
| 25 psi | 1.701149 atm |
| 50 psi | 3.402298 atm |
| 100 psi | 6.804596 atm |
| 250 psi | 17.011491 atm |
| 500 psi | 34.022982 atm |
| 1000 psi | 68.045964 atm |
Other pound per square inch conversions
Convert to atmosphere from another unit
psi to atm — frequently asked
How many atmospheres are in 1 pound per square inch?
1 pound per square inch = 0.068046 atmospheres (psi × 0.068046 = atm).
What is the formula to convert pound per square inch to atmosphere?
Multiply your pound per square inch value by 0.06804596 to get atmosphere.
How do I convert 10 psi to atmospheres?
10 psi = 0.68046 atm. For 100 psi the answer is 6.804596 atm. Use the calculator on this page for any other value.
When to convert pound per square inch to atmosphere
Pressure conversion — common questions
What's the difference between bar and psi?
1 bar = 100,000 Pa ≈ 14.504 psi. Bar is metric/SI-friendly; psi is US imperial. Tire pressure in cars is commonly 30–35 psi or ≈ 2.1–2.4 bar.
Is 1 atmosphere the same as 1 bar?
Very close but not identical. 1 atm = 1.01325 bar = 101,325 Pa. 1 bar = 100,000 Pa.
Why is blood pressure in mmHg?
Historically measured with mercury manometers — the pressure that supports a column of mercury that many millimetres tall. 120 mmHg systolic ≈ 16 kPa.