Pound per Square Inch (psi) (psi)
Pounds per square inch (psi) measures force in pounds distributed over each square inch of area.
PSI is the default for US tire pressure, HVAC systems, hydraulics, and many industrial pressure ratings.
Pound per Square Inch (psi) to Standard Atmosphere
Convert pound per square inch (psi) to standard atmosphere instantly. Type in either field — results update live.
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Pressure Pound per Square Inch (psi) Standard Atmosphere
1 pound per square inch (psi) = 0.0680459639 standard atmospheres
Unit
Unit
Conversion table
Selected psi values converted to atm using the exact factor from this tool.
| psi | atm |
|---|---|
| 0.01 | 0.0006804596 |
| 0.1 | 0.0068045964 |
| 1 | 0.0680459639 |
| 2 | 0.1360919278 |
| 3 | 0.2041378917 |
| 5 | 0.3402298195 |
| 10 | 0.6804596391 |
| 20 | 1.3609192782 |
| 50 | 3.4022981955 |
| 100 | 6.804596391 |
| 1,000 | 68.04596391 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 psi = 0.0680459639 atm
1 atm = 14.6959487755 psi
To convert pound per square inch (psi) to standard atmosphere, multiply by 0.0680459639.
To convert standard atmosphere to pound per square inch (psi), multiply by 14.6959487755.
Example: convert 10 psi to atm
10 × 0.0680459639 = 0.6804596391 atm
About these units
Short background on the units used in this conversion.
Standard Atmosphere (atm)
The standard atmosphere (atm) is defined as exactly 101,325 pascals — average sea-level atmospheric pressure.
Atmospheres compare scuba tank fills, describe laboratory reference pressure, and normalize gas volumes.
Frequently asked questions
How many standard atmospheres are in one pound per square inch (psi)?
One pound per square inch (psi) equals 0.0680459639 standard atmospheres. Multiply your pounds per square inch value by 0.0680459639 to convert to standard atmospheres.
What is the conversion formula?
atm = psi × 0.0680459639The reverse is
psi = atm × 14.6959487755, using the same exact factors as this converter.Is this Pound per Square Inch (psi) to Standard Atmosphere converter private?
Yes. All calculations run locally in your browser. Nothing you type is sent to a server.
All pound per square inch (psi) conversions
Jump to any pressure conversion starting from pound per square inch (psi) — including the reverse direction and every other unit in our dataset.
standard atmosphere (atm) → pound per square inch (psi) (psi)
pound per square inch (psi) (psi) → pascal (Pa)pound per square inch (psi) (psi) → kilopascal (kPa)pound per square inch (psi) (psi) → megapascal (MPa)pound per square inch (psi) (psi) → barpound per square inch (psi) (psi) → hectopascal (hPa)pound per square inch (psi) (psi) → millibar (mbar)pound per square inch (psi) (psi) → torrpound per square inch (psi) (psi) → millimeter mercury (0°c) (mmHg)pound per square inch (psi) (psi) → newton per square meter (N/m²)pound per square inch (psi) (psi) → kip per square inch (ksi) (ksi)pound per square inch (psi) (psi) → exapascal (EPa)pound per square inch (psi) (psi) → petapascal (PPa)pound per square inch (psi) (psi) → terapascal (TPa)pound per square inch (psi) (psi) → gigapascal (GPa)pound per square inch (psi) (psi) → dekapascal (daPa)pound per square inch (psi) (psi) → decipascal (dPa)pound per square inch (psi) (psi) → centipascal (cPa)pound per square inch (psi) (psi) → millipascal (mPa)pound per square inch (psi) (psi) → micropascal (µPa)pound per square inch (psi) (psi) → nanopascal (nPa)pound per square inch (psi) (psi) → picopascal (pPa)pound per square inch (psi) (psi) → femtopascal (fPa)pound per square inch (psi) (psi) → attopascal (aPa)pound per square inch (psi) (psi) → newton per square centimeter (N/cm²)pound per square inch (psi) (psi) → newton per square millimeter (N/mm²)pound per square inch (psi) (psi) → kilonewton per square meter (kN/m²)pound per square inch (psi) (psi) → microbar (µbar)pound per square inch (psi) (psi) → dyne per square centimeter (dyn/cm²)pound per square inch (psi) (psi) → kilogram-force per square meter (kgf/m²)pound per square inch (psi) (psi) → kilogram-force per square centimeter (kgf/cm²)pound per square inch (psi) (psi) → kilogram-force per square millimeter (kgf/mm²)pound per square inch (psi) (psi) → gram-force per square centimeter (gf/cm²)pound per square inch (psi) (psi) → ton-force (short) per square foot (tonf/ft²)pound per square inch (psi) (psi) → ton-force (short) per square inch (tonf/in²)pound per square inch (psi) (psi) → ton-force (long) per square foot (long tonf/ft²)pound per square inch (psi) (psi) → ton-force (long) per square inch (long tonf/in²)pound per square inch (psi) (psi) → kip-force per square inch (kip/in²)pound per square inch (psi) (psi) → pound-force per square foot (lbf/ft²)pound per square inch (psi) (psi) → pound-force per square inch (lbf/in²)pound per square inch (psi) (psi) → poundal per square foot (pdl/ft²)pound per square inch (psi) (psi) → centimeter mercury (0°c) (cmHg)pound per square inch (psi) (psi) → inch mercury (32°f) (inHg)pound per square inch (psi) (psi) → inch mercury (60°f) (inHg)pound per square inch (psi) (psi) → centimeter water (4°c) (cmH₂O)pound per square inch (psi) (psi) → millimeter water (4°c) (mmH₂O)pound per square inch (psi) (psi) → inch water (4°c) (inAq)pound per square inch (psi) (psi) → foot water (4°c) (ftAq)pound per square inch (psi) (psi) → inch water (60°f) (inAq)pound per square inch (psi) (psi) → foot water (60°f) (ftAq)pound per square inch (psi) (psi) → atmosphere technical (at)