PSI to Atmosphere Converter
Pressure · unit-converter
Convert PSI to Atmosphere with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations bridge through pascal with fixed definitions (standard atmosphere = 101,325 Pa; torr and mmHg = atm/760; plus industrial/manometer units like kgf/cm², inHg, inH2O, and mmH2O).
About PSI
Pounds-force per square inch (PSI) is common for tires, hydraulics, and US industrial equipment.
About Atmosphere
The standard atmosphere (atm) is defined as exactly 101,325 Pa. It links legacy chemistry and physics problems to SI.
How to convert psi to atmosphere
1 psi equals 0.06804596390987416 atmosphere in this tool (via pascal):
1 psi = (6894.757293168 Pa ÷ 101325 Pa) atm = 0.06804596390987416 atm
Each psi carries 6894.757293168 Pa and each atmosphere 101325 Pa, so one psi equals 6894.757293168 ÷ 101325 atm.
Let p(psi) be pressure in PSI (psi), and p(atm) in Atmosphere (atm). Then:
p(atm) = p(psi) × (6894.757293168 / 101325)
Equivalently, divide by how many psi fit into one atm (Pa per atm divided by Pa per psi):
p(atm) = p(psi) ÷ 14.69594877551422
Examples
Example #1: Convert 1 psi to atmosphere
1 psi = 1 psi × (6894.757293168/101325) atm = 0.0680459639 atm
1 psi = 1 psi ÷ 14.69594877551422 = 0.0680459639 atm
1 psi × (6,894.757293168/101,325) = 0.068046 atm
Example #2: Convert 10 psi to atmosphere
10 psi = 10 psi × (6894.757293168/101325) atm = 0.6804596391 atm
10 psi = 10 psi ÷ 14.69594877551422 = 0.6804596391 atm
10 psi × (6,894.757293168/101,325) = 0.680460 atm
Summary
To convert PSI to Atmosphere, multiply the value in psi by (6894.757293168 Pa per psi) / (101325 Pa per atm). Equivalently: value_atm = value_psi × (6894.757293168 / 101325). Numerically, 1 psi equals 0.06804596390987416 atm.
Relationship context
Both PSI and Atmosphere are converted by fixed multiples of the pascal. Multiplying by (Pa per psi) ÷ (Pa per atm) gives the same result as passing through pascal, keeping bar, atm, PSI, kPa, hPa, torr, and mmHg consistent on the hub.
Conversion tables
| PSI (psi) | Atmosphere (atm) |
|---|---|
| 0.1 | 0.0068045964 |
| 1 | 0.0680459639 |
| 2 | 0.1360919278 |
| 3 | 0.2041378917 |
| 4 | 0.2721838556 |
| 5 | 0.3402298195 |
| 6 | 0.4082757835 |
| 7 | 0.4763217474 |
| 8 | 0.5443677113 |
| 9 | 0.6124136752 |
| PSI (psi) | Atmosphere (atm) |
|---|---|
| 10 | 0.6804596391 |
| 20 | 1.3609192782 |
| 30 | 2.0413789173 |
| 40 | 2.7218385564 |
| 50 | 3.4022981955 |
| 60 | 4.0827578346 |
| 70 | 4.7632174737 |
| 80 | 5.4436771128 |
| 90 | 6.1241367519 |
| 100 | 6.804596391 |