Convert megapascals (MPa) to pounds per square inch (psi).
Pressure converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
MPa
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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.
145.0377377
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 MPa ≈ 145.0377377 psi
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULApsi = MPa × 145.037737730209
FORMULA & EXAMPLES
How to convert Megapascals to pounds per square inch
psi = MPa × 145.037737730209
Multiply the MPa reading by 145.037737730209.
Worked examples
1 MPa ≈ 145.0377377 psi
1 × 145.037737730209 ≈ 145.0377377
10 MPa ≈ 1450.377377 psi
10 × 145.037737730209 ≈ 1450.377377
Frequently asked questions
Does MPa 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.
Megapascals to pounds per square inch table
Fixed reference · Megapascal 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.
Megapascal (MPa)
Pounds per square inch (psi)
0
0
0.1
14.50377377
0.5
72.51886887
1
145.0377377
2
290.0754755
5
725.1886887
10
1450.377377
25
3625.943443
50
7251.886887
100
14503.77377
1000
145037.7377
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.