MPa to psi Converter - Megapascal to Pounds per Square Inch

Megapascal (MPa) to Pounds per Square Inch (psi)

Direct answer

1 MPa = 145.037680789 psi

psi = MPa × 145.037680789

Converter

Input

MPa

Result

145.037680789psi

psi = MPa × 145.037680789

MPa = psi × 0.00689476

Example: 10 MPa = 10 × 145.037680789 = 1,450.37680789 psi.

Express both MPa and psi in the same base unit Pa (pascal), then cancel the shared base unit.

1
Rewrite MPa in the base unit
$1 MPa = 1, 000, 000 Pa$
2
Rewrite psi in the base unit
$1 psi = 6, 894.76 Pa$
3
Forward conversion
$1 MPa = \frac{1 , 000 , 000 Pa}{6 , 894.76 Pa} \times 1 psi = \frac{1 , 000 , 000}{6 , 894.76} psi = 145.037680789 psi$
4
Reverse conversion
$1 psi = \frac{6 , 894.76 Pa}{1 , 000 , 000 Pa} \times 1 MPa = \frac{6 , 894.76}{1 , 000 , 000} MPa = 0.00689476 MPa$

A guarded explanation for this pair page covering definition, principle, assumptions, and cautions.

Guarded output

AI text is for interpretation only. The page calculator remains the source of truth for numeric results.

1 MPa = 145.037680789 psi.

10 MPa = 1,450.37680789 psi.

100 MPa = 14,503.7680789 psi.

Use psi = MPa × 145.037680789.

1 psi = 0.00689476 MPa.

Use the conversion factor and round the result to the precision required by your calculation.