Bar (bar) to Megapascals (MPa) Conversion
Bar
The bar is a unit of pressure equal to exactly 100,000 pascals (100 kPa), accepted for use with the SI by the BIPM. It is close to one standard atmosphere (1 atm = 1.01325 bar) making it convenient for many practical applications. The bar is widely used in meteorology (weather maps), industrial gas and fluid systems, and tyre inflation in continental Europe. A typical car tyre is inflated to 2.2–2.5 bar; scuba diving tanks are filled to 200–300 bar.
Megapascals
The megapascal (MPa) is a unit of pressure equal to exactly 1,000,000 pascals (10⁶ Pa) and is the standard unit for expressing material strength, hydraulic system pressure, and structural loading in engineering. The tensile strength of structural steel is approximately 400–600 MPa; high-strength carbon fibre composites can exceed 3,500 MPa. Hydraulic systems in heavy machinery operate at 20–70 MPa. In geology, lithostatic pressure in the Earth's crust is measured in MPa and GPa.
| Bar (bar) | Megapascals (MPa) |
|---|---|
| 0.1 bar | 0.01 MPa |
| 1 bar | 0.1 MPa |
| 2 bar | 0.2 MPa |
| 3 bar | 0.3 MPa |
| 5 bar | 0.5 MPa |
| 10 bar | 1 MPa |
| 20 bar | 2 MPa |
| 30 bar | 3 MPa |
| 50 bar | 5 MPa |
| 100 bar | 10 MPa |
| 1000 bar | 100 MPa |