Pounds-force per square inch to Standard atmospheres – pound-force per square inch to standard atmosphere Converter

1 psi ≈ 0.068046 atm

pounds-force per square inch (psi)

standard atmospheres (atm)0.068046

Formula

atm = psi × ≈ 0.068046

Pounds-force per square inch to standard atmospheres conversion table

pounds-force per square inch (psi)	standard atmospheres (atm)
0.25 psi	0.0170115 atm
0.5 psi	0.034023 atm
1 psi	≈ 0.068046 atm
2 psi	0.136092 atm
5 psi	0.34023 atm
10 psi	0.68046 atm
20 psi	1.36092 atm
50 psi	3.4023 atm
100 psi	6.8046 atm
200 psi	13.6092 atm
500 psi	34.023 atm
1000 psi	68.046 atm
2500 psi	170.115 atm
5000 psi	340.23 atm
10000 psi	680.46 atm

Pounds-force per square inch and standard atmospheres are both pressure units. One pound-force per square inch is approximately 0.068046 standard atmospheres; enter any value above for an instant result, or use the table for common conversions.

Sanity-check examples

1 psi = 0.068046 atm
10 psi = 0.68046 atm
2.5 psi = 0.170115 atm

Common pitfalls and look-alike units

One standard atmosphere is exactly 101325 Pa while 1 bar is 100000 Pa — about 1.3% apart, so do not mix them. Tire pressures are often quoted in psi or bar (1 bar ≈ 14.5 psi, 1 psi ≈ 6.895 kPa); millimeter of mercury uses the conventional value 1 mmHg = 133.322387415 Pa.

Frequently asked questions

How many standard atmospheres are in a pound-force per square inch?

1 pound-force per square inch (psi) is approximately 0.068046 standard atmosphere (atm).

How do I convert pounds-force per square inch to standard atmospheres?

Multiply the pound-force per square inch value by ≈ 0.068046 to get standard atmosphere — for example, 2 pounds-force per square inch = 0.136092 standard atmosphere.

How do I convert standard atmospheres back to pounds-force per square inch?

1 standard atmosphere is approximately 14.6959 pound-force per square inch. Use the swap button or the reverse conversion page linked on this page.

Related conversions

Need more units? Try the full Unit Converter →