MPa to PSI Converter
Type a value in megapascals to see it in pounds per square inch as you type, with the exact formula and a reference chart.
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- 1,973.8 atm
How this was calculated
- 1 megapascal = 145.0377377 pounds per square inch
- 200 × 145.0377377 = 29,007.548 psi
| MPa | psi |
|---|---|
| 0.1 MPa | 14.5038 psi |
| 0.5 MPa | 72.5189 psi |
| 1 MPa | 145.038 psi |
| 1.5 MPa | 217.557 psi |
| 2 MPa | 290.075 psi |
| 2.5 MPa | 362.594 psi |
| 3 MPa | 435.113 psi |
| 5 MPa | 725.189 psi |
| 10 MPa | 1,450.38 psi |
| 15 MPa | 2,175.57 psi |
| 20 MPa | 2,900.75 psi |
| 25 MPa | 3,625.94 psi |
| 30 MPa | 4,351.13 psi |
| 35 MPa | 5,076.32 psi |
| 40 MPa | 5,801.51 psi |
| 50 MPa | 7,251.89 psi |
| 60 MPa | 8,702.26 psi |
| 70 MPa | 10,152.6 psi |
| 100 MPa | 14,503.8 psi |
| 150 MPa | 21,755.7 psi |
| 200 MPa | 29,007.5 psi |
| 250 MPa | 36,259.4 psi |
| 300 MPa | 43,511.3 psi |
| 400 MPa | 58,015.1 psi |
| 500 MPa | 72,518.9 psi |
| 1,000 MPa | 145,038 psi |
| psi | MPa |
|---|---|
| 100 psi | 0.689476 MPa |
| 500 psi | 3.44738 MPa |
| 1,000 psi | 6.89476 MPa |
| 1,500 psi | 10.3421 MPa |
| 2,000 psi | 13.7895 MPa |
| 2,500 psi | 17.2369 MPa |
| 3,000 psi | 20.6843 MPa |
| 3,500 psi | 24.1317 MPa |
| 4,000 psi | 27.579 MPa |
| 4,500 psi | 31.0264 MPa |
| 5,000 psi | 34.4738 MPa |
| 6,000 psi | 41.3685 MPa |
How to convert megapascals to pounds per square inch
1 megapascal = 145.0377377 pounds per square inch. To convert megapascals to pounds per square inch, multiply by 145.0377377. A megapascal is 1,000,000 pascals (1 N/mm²). One psi is one pound-force on one square inch, exactly 6,894.757293168 Pa.
Worked examples
- 25 megapascals = 3,625.94 psi (25 × 145.03774)
- 200 megapascals = 29,007.5 psi (200 × 145.03774)
- 1,000 megapascals = 145,038 psi (1,000 × 145.03774)
Where this conversion comes up
Megapascals are used for concrete and steel strength, hydraulics; pounds per square inch for tire pressure, compressors and plumbing in the US. One megapascal is 145.04 psi, so 25 MPa concrete is 3,626 psi and a 400 MPa steel yield strength is 58,015 psi. Hydraulic systems around 20 MPa run at 2,900 psi.
Quick estimate
Multiply by 145.
Common mistakes
- Dividing instead of multiplying. A pound per square inch is smaller than a megapascal, so the number of pounds per square inch must come out larger: 25 megapascals = 3,625.94 psi.
Going the other way? Use the psi to mpa converter. Related pressure converters: bar to psi, psi to bar, kpa to psi, psi to kpa.
Frequently asked questions
How do you convert megapascals to pounds per square inch?
Multiply the megapascals by 145.0377377. For example, 200 megapascals is 29,007.5 pounds per square inch.
How many pounds per square inch are in one megapascal?
One megapascal is 145.0377377 pounds per square inch. A megapascal is 1,000,000 pascals (1 N/mm²).
What is 1,000 megapascals in pounds per square inch?
1,000 megapascals is 145,038 pounds per square inch.
Is there a quick way to estimate megapascals to pounds per square inch?
Multiply by 145.