Pressure Unit Converter
Convert between PSI, MPa and bar instantly. Built for hydraulic engineers sizing cylinders, valve blocks and power units.
1 MPa = 10 bar = 145.038 PSI · 1 bar = 14.5038 PSI · 1 PSI = 0.0689476 bar
Quick reference table
Common hydraulic pressure values, ready to use in specifications and datasheets.
| bar | MPa | PSI |
|---|---|---|
| 10 | 1 | 145 |
| 50 | 5 | 725 |
| 100 | 10 | 1,450 |
| 150 | 15 | 2,176 |
| 160 | 16 | 2,321 |
| 180 | 18 | 2,611 |
| 200 | 20 | 2,901 |
| 210 | 21 | 3,046 |
| 250 | 25 | 3,626 |
| 315 | 31.5 | 4,569 |
| 350 | 35 | 5,076 |
| 420 | 42 | 6,092 |
Conversion formulas
PSI → MPa
MPa = PSI × 0.00689476
or MPa = PSI ÷ 145.038
PSI → bar
bar = PSI × 0.0689476
or bar = PSI ÷ 14.5038
MPa ↔ bar
bar = MPa × 10
MPa = bar ÷ 10
Frequently asked questions
How many PSI is 1 bar?
1 bar equals 14.5038 PSI. To convert bar to PSI, multiply the bar value by 14.5038. For example, 200 bar = 2,901 PSI.
How many bar is 1 MPa?
1 MPa (megapascal) equals exactly 10 bar. To convert MPa to bar, multiply by 10. For example, 25 MPa = 250 bar.
How do I convert PSI to MPa?
Divide the PSI value by 145.038 (or multiply by 0.00689476). For example, 3,000 PSI ÷ 145.038 = 20.7 MPa.
What pressure do hydraulic cylinders typically work at?
Most mobile hydraulic cylinders work between 160 and 250 bar (16–25 MPa, roughly 2,300–3,600 PSI). HCIC agricultural cylinders typically work at 160–250 bar, with valve blocks rated to 350 bar (35 MPa).