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
Conversion formula
psi = MPa × 145.037680789
MPa = psi × 0.00689476
Example: 10 MPa = 10 × 145.037680789 = 1,450.37680789 psi.
Common conversion table
| MPa | psi |
|---|---|
| 1 MPa | 145.037680789 psi |
| 2 MPa | 290.075361579 psi |
| 5 MPa | 725.188403947 psi |
| 10 MPa | 1,450.37680789 psi |
| 20 MPa | 2,900.75361579 psi |
| 50 MPa | 7,251.88403947 psi |
| 100 MPa | 14,503.7680789 psi |
| 1,000 MPa | 145,037.680789 psi |
Conversion derivation
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
- 2
Rewrite psi in the base unit
- 3
Forward conversion
- 4
Reverse conversion
AI explanation for this conversion
This pre-generated explanation is schema-checked. Numeric results still come from the page formula and calculator.
Megapascal to psi Conversion
This conversion factor is derived by expressing both units in the common base unit of pascal (Pa). The factor of 145.037680789 results from the ratio of the two defined values in pascals.
Definition
The megapascal (MPa) is a metric unit of pressure equal to one million pascals. The psi (pounds per square inch) is an imperial unit of pressure defined as one pound of force applied per square inch.
Principle
The conversion uses the relationship that 1 MPa equals 1,000,000 Pa and 1 psi equals 6,894.76 Pa. Dividing the first value by the second gives the conversion factor.
Assumptions
- The conversion is based on the defined equivalence of 1 psi = 6,894.76 Pa.
- The calculation assumes the standard definitions of the megapascal and the pound-force.
Cautions
- The result is a mathematical conversion; it does not account for measurement uncertainty or rounding in the input values.
- Always check the required precision for your specific calculation and round accordingly.
FAQ
How many psi are in 1 MPa?
1 MPa = 145.037680789 psi.
How many psi are in 10 MPa?
10 MPa = 1,450.37680789 psi.
How many psi are in 100 MPa?
100 MPa = 14,503.7680789 psi.
What is the formula to convert MPa to psi?
Use psi = MPa × 145.037680789.
How many MPa are in 1 psi?
1 psi = 0.00689476 MPa.
What should I check when converting MPa to psi?
Use the conversion factor and round the result to the precision required by your calculation.