Convert pressure units — pascal, PSI, bar, atmosphere, torr, mmHg and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 bar | 0.0001 MPa | |
| 0.01 bar | 0.001 MPa | |
| 0.1 bar | 0.01 MPa | |
| 1 bar | 0.1 MPa | |
| 5 bar | 0.5 MPa | |
| 10 bar | 1 MPa | |
| 50 bar | 5 MPa | |
| 100 bar | 10 MPa | |
| 1000 bar | 100 MPa |
Formula: Megapascal = Bar × 0.1
Multiply any bar value by 0.1 to get megapascal.
Reverse: Bar = Megapascal × 10
Common bar values — factor: 1 bar = 0.1 MPa
| Bar (bar) | Megapascal (MPa) | Context |
|---|---|---|
| 0.001 bar | 0.0001 MPa | 0.1 kPa |
| 0.01 bar | 0.001 MPa | 1 kPa |
| 0.1 bar | 0.01 MPa | 10 kPa |
| 1 bar | 0.1 MPa | 100 kPa / ~1 atm |
| 1.013 bar | 0.1013 MPa | 1 standard atm |
| 2 bar | 0.2 MPa | 29 psi / car tire |
| 5 bar | 0.5 MPa | 72 psi |
| 10 bar | 1 MPa | 145 psi |
| 100 bar | 10 MPa | 1,450 psi |
| 200 bar | 20 MPa | Scuba tank |
| 300 bar | 30 MPa | High-pressure system |
| 500 bar | 50 MPa | 5,000 psi |
| 1,000 bar | 100 MPa | 10,000 psi |
| 0.06895 bar | 0.006895 MPa | 1 psi |
| 0.001333 bar | 0.0001333 MPa | 1 mmHg |
1 bar = 0.1 MPa. Memorize for instant estimates.
Use 0.1 as a quick mental multiplier.
Multiply result by 10 to recover the original bar value.
Monitors dive cylinder pressure in bar — standard in most of the world (200–300 bar).
Reads surface pressure maps in millibar (1 mbar = 0.001 bar) for weather forecasting.
Designs European hydraulic systems — pumps and actuators are rated in bar.
Controls fermentation vessel pressure (1–3 bar) and carbonation pressures in bar.
Specifies pipeline operating pressures and safety relief settings in bar.
Monitors tire pressure and boost pressure on turbocharged engines in bar.
The bar is a metric unit of pressure equal to exactly 100,000 pascals — very close to standard atmospheric pressure (1 atm = 1.01325 bar). It was introduced in 1909 and is widely used in Europe for weather forecasting, diving, and industrial applications.
Scuba diving cylinders are filled to 200–300 bar. Automotive tire pressure gauges often display in bar across Europe. Industrial compressors and hydraulic systems are commonly rated in bar.
Interesting fact: The millibar (mbar = hPa) is the standard unit for atmospheric pressure in meteorology worldwide. Standard sea-level atmospheric pressure is 1013.25 mbar.
The megapascal (MPa) equals 1,000,000 pascals (1,000 kPa) and is the standard unit for high-pressure engineering applications including hydraulics, structural materials, and industrial processes.
Steel has a tensile strength of about 400–550 MPa; concrete compressive strength is typically 20–40 MPa. Hydraulic systems in heavy machinery operate at 20–35 MPa. Water jet cutting uses pressures up to 600 MPa.
Interesting fact: The deepest point in the ocean (Mariana Trench, ~11,000 m) has a pressure of about 110 MPa — over 1,000 times atmospheric pressure.
Converting bar to megapascal is a common task in engineering, medicine, meteorology, and science. Different industries and countries use different pressure units — PSI in the US, bar in Europe, mmHg in medicine, and pascals in physics — making accurate conversion essential for cross-disciplinary work.
Quick reference: 5 bar = 0.5 MPa and 10 bar = 1 MPa. For the reverse: 1 MPa = 10 bar. The exact factor is 1 bar = 0.1 MPa.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.