Pound-force per square inch to Megapascal Converter
1 psi is about 0.006894757293 megapascals. Convert psi (psi) to megapascals (MPa) below: type a value and the result updates as you type.
psi to MPa calculator
Result
Pound-force per square inch to Megapascal conversion
1 psi ≈ 0.006894757293 MPaone psi in megapascals
1 MPa ≈ 145.0377377 psione megapascal in psi
Pound-force per square inch (psi): One pound-force per square inch: 4.4482216152605 N / (0.0254 m)².
Megapascal (MPa): Exactly one million pascals.
Source:Pound-force per square inch: NIST Special Publication 811 (2008), Appendix B.8; Megapascal: SI Brochure, 9th edition (BIPM, 2019)
How to convert psi to megapascals
To convert psi to megapascals, multiply the number of psi by about 0.006894757293.
Formula
MPa = psi × 0.006894757293
The factor is rounded here. The calculator uses the exact value.
Examples
- 5 psi = 5 × 0.006894757293 ≈ 0.03447378647 MPa
- 25 psi = 25 × 0.006894757293 ≈ 0.1723689323 MPa
- 100 psi = 100 × 0.006894757293 ≈ 0.6894757293 MPa
Pound-force per square inch to Megapascal conversion table
| Pound-force per square inch (psi) | Megapascal (MPa) |
|---|---|
| 0.1 psi | 0.0006894757293 MPa |
| 0.5 psi | 0.003447378647 MPa |
| 1 psi | 0.006894757293 MPa |
| 2 psi | 0.01378951459 MPa |
| 3 psi | 0.02068427188 MPa |
| 5 psi | 0.03447378647 MPa |
| 10 psi | 0.06894757293 MPa |
| 20 psi | 0.1378951459 MPa |
| 25 psi | 0.1723689323 MPa |
| 50 psi | 0.3447378647 MPa |
| 100 psi | 0.6894757293 MPa |
| 250 psi | 1.723689323 MPa |
| 500 psi | 3.447378647 MPa |
| 1000 psi | 6.894757293 MPa |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many megapascals are in one psi?
- One psi is about 0.006894757293 megapascals.
- How do I convert megapascals to psi?
- To convert megapascals to psi, multiply the number of megapascals by about 145.0377377. The formula is psi = MPa × 145.0377377.
- Is this conversion exact?
- Yes. Both units have exact definitions, but the factor has more decimal places than can be shown, so displayed results are rounded. The calculator works with 50 significant digits before rounding.
- Which is larger, a psi or a megapascal?
- A megapascal is about 145.0377377 times larger than a psi. In other words, a psi is about 0.006894757293 of a megapascal.