Standard atmospheres to pounds per square inch converter
Convert standard atmospheres (atm) to pounds per square inch (psi).
Pressure converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
atm
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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.
14.69594878
psi
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 atm ≈ 14.69594878 psi
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULApsi = atm × 14.6959487755135
FORMULA & EXAMPLES
How to convert Standard atmospheres to pounds per square inch
psi = atm × 14.6959487755135
Multiply the atm reading by 14.6959487755135.
Worked examples
1 atm ≈ 14.69594878 psi
1 × 14.6959487755135 ≈ 14.69594878
2 atm ≈ 29.39189755 psi
2 × 14.6959487755135 ≈ 29.39189755
Frequently asked questions
Does atm to psi 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.
Standard atmospheres to pounds per square inch table
Fixed reference · Standard atmosphere to Pounds per square inch
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Standard atmosphere (atm)
Pounds per square inch (psi)
0
0
0.1
1.469594878
0.5
7.347974388
1
14.69594878
2
29.39189755
5
73.47974388
10
146.9594878
25
367.3987194
50
734.7974388
100
1469.594878
1000
14695.94878
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.