Convert millibars (mbar) to pounds per square inch (psi).
Pressure converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
mbar
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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.
0.01450377377
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.
CONVERSION
1 mbar ≈ 0.01450377377 psi
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULApsi = mbar × 0.0145037737730209
FORMULA & EXAMPLES
How to convert Millibars to pounds per square inch
psi = mbar × 0.0145037737730209
Multiply the mbar reading by 0.0145037737730209.
Worked examples
1 mbar ≈ 0.01450377377 psi
1 × 0.0145037737730209 ≈ 0.01450377377
1000 mbar ≈ 14.50377377 psi
1000 × 0.0145037737730209 ≈ 14.50377377
Frequently asked questions
Does mbar 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.
Millibars to pounds per square inch table
Fixed reference · Millibar 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.
Millibar (mbar)
Pounds per square inch (psi)
0
0
0.1
0.001450377377
0.5
0.007251886887
1
0.01450377377
2
0.02900754755
5
0.07251886887
10
0.1450377377
25
0.3625943443
50
0.7251886887
100
1.450377377
1000
14.50377377
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.