1 MPa to psi
1 MPa ≈ 145.04 psi
1 megapascal is approximately 145.04 pounds per square inch.
How to convert 1 MPa to psi
Use the formula psi = MPa × 145.03773773:
psi = 1 × 145.03773773psi = 145.037738
So 1 MPa = 145.037738 psi, or about 145.04 psi rounded.
Rounded values and quick estimate
- Rounded to a whole number: 145 psi
- Rounded to one decimal place: 145 psi
- Conversion factor: 1 megapascal = 145.04 pounds per square inch
Quick mental estimate: multiply by 145. For 1 MPa that gives about 145 psi — within 1% of the exact answer. Use the exact formula when precision matters.
1 MPa in other units
- Pounds per square inch
- 145.04 psi
- Bar
- 10 bar
- Kilopascals
- 1000 kPa
- Atmospheres
- 9.87 atm
- Millimeters of mercury
- 7500.62 mmHg
- Hectopascals
- 10000 hPa
- Inches of mercury
- 295.3 inHg
1 MPa and nearby values
| Megapascals | Pounds per square inch |
|---|---|
| 1 MPa | 145.04 psi |
| 2 MPa | 290.08 psi |
| 3 MPa | 435.11 psi |
| 4 MPa | 580.15 psi |
| 5 MPa | 725.19 psi |
About megapascals and pounds per square inch
A megapascal is one million pascals (about 145 psi). Concrete strength and hydraulic pressures are given in MPa.
Pounds per square inch is the US unit of pressure, used for tires and air compressors. 1 psi ≈ 0.0689 bar.
Related conversions
Frequently asked questions
What is 1 MPa in psi?
1 megapascal is about 145.04 pounds per square inch (1 MPa ≈ 145.04 psi).
How do you convert 1 MPa to psi?
Apply psi = MPa × 145.03773773: psi = 1 × 145.03773773, psi = 145.037738.
How many megapascals is 145.04 psi?
145.04 psi is about 1 megapascals.