PSI to Megapascal
Convert PSI to Megapascal instantly. Free online pressure unit converter with exact formula, conversion table and FAQ.
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Formula
megapascal = psi × 0.006895
psi = megapascal × 145.037738
Conversion table
| 1 psi | 0.006895 MPa |
| 5 psi | 0.034474 MPa |
| 10 psi | 0.068948 MPa |
| 20 psi | 0.137895 MPa |
| 50 psi | 0.344738 MPa |
| 100 psi | 0.689476 MPa |
| 500 psi | 3.447379 MPa |
| 1000 psi | 6.894757 MPa |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the psi (psi). Pounds per square inch.
What is the destination unit in this conversion?
The destination unit is the megapascal (MPa). Megapascal is 1000000 pascal units.
How do I convert psi to megapascal?
Multiply the psi value by 0.006895. For example, 10 psi × 0.006895 = 0.068948 MPa.
Is the psi to megapascal conversion exact?
Yes. Both units are defined as fixed multiples of the pascal, the SI-derived unit of pressure, so the conversion factor follows directly from those exact definitions rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in psi needs to be compared with, or reported in, megapascal, such as in engineering specifications, weather readings, tire pressure, or industrial and scientific work.
Can I convert megapascal back to psi?
Yes. Multiply the megapascal value by 145.037738 to get psi.
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About this conversion
This page converts psi (psi) to megapascal (MPa) within the pressure converter.
Pounds per square inch. Megapascal is 1000000 pascal units.
The formula is megapascal = psi × 0.006895, based on each unit's fixed relationship to the pascal, the pressure converter's base unit.
The conversion is exact, since both units are tied to the pascal by a fixed numerical ratio rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common psi values already converted to megapascal.