psi to MPa Converter - Pounds per Square Inch to Megapascal

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

Direct answer

1 psi = 0.00689476 MPa

MPa = psi × 0.00689476

Converter

Input

psi

Result

0.00689476MPa

MPa = psi × 0.00689476

psi = MPa × 145.037680789

Example: 10 psi = 10 × 0.00689476 = 0.0689476 MPa.

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

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

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

Guarded output

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1 psi = 0.00689476 MPa.

10 psi = 0.0689476 MPa.

100 psi = 0.689476 MPa.

Use MPa = psi × 0.00689476.

1 MPa = 145.037680789 psi.

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