Pounds per square inch to standard atmospheres converter
Convert pounds per square inch (psi) to standard atmospheres (atm).
Pressure converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
psi
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PascalPa
KilopascalkPa
MegapascalMPa
Barbar
Millibarmbar
HectopascalhPa
Standard atmosphereatm
Pounds per square inchpsi
TorrTorr
Conventional millimetre of mercurymmHg
No units found. Try a name or symbol.
0.06804596391
atm
esc
PascalPa
KilopascalkPa
MegapascalMPa
Barbar
Millibarmbar
HectopascalhPa
Standard atmosphereatm
Pounds per square inchpsi
TorrTorr
Conventional millimetre of mercurymmHg
No units found. Try a name or symbol.
CONVERSION
1 psi ≈ 0.06804596391 atm
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAatm = psi × 0.0680459639098777
FORMULA & EXAMPLES
How to convert Pounds per square inch to standard atmospheres
atm = psi × 0.0680459639098777
Multiply the psi reading by 0.0680459639098777.
Worked examples
1 psi ≈ 0.06804596391 atm
1 × 0.0680459639098777 ≈ 0.06804596391
30 psi ≈ 2.041378917 atm
30 × 0.0680459639098777 ≈ 2.041378917
Frequently asked questions
Does psi to atm change gauge pressure into absolute pressure?
No. Unit conversion preserves the original pressure reference. Converting a gauge reading to absolute pressure additionally requires the applicable atmospheric pressure.
Pounds per square inch to standard atmospheres table
Fixed reference · Pounds per square inch to Standard atmosphere
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Pounds per square inch (psi)
Standard atmosphere (atm)
0
0
0.1
0.006804596391
0.5
0.03402298195
1
0.06804596391
2
0.1360919278
5
0.3402298195
10
0.6804596391
25
1.701149098
50
3.402298195
100
6.804596391
1000
68.04596391
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.