A millibar is 100 pascals.
Millibars to Megapascals Converter — mbar to MPa
Convert Millibar (mbar) to Megapascal (MPa) using the exact conversion factor (1 millibar = 0.0001 megapascal). See the formula, worked examples, and conversion table.
Millibars to Megapascals converter
Converter
Pressure Converter
Convert pascals, bars, PSI, atmospheres, mercury columns, water columns, and engineering pressure units.
Context values
Some unit families need one extra value for a physically accurate result.
Megapascal is 1000000 pascal units.
Result = input x 100 / 1e+6.
Pressure uses the pascal as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Millibars to Megapascals
Millibar and Megapascal both show up on pressure gauges — psi is standard on US tire and tool specifications, while bar is the everyday pressure unit across most of the rest of the world. Specifically: A millibar is 100 pascals, and megapascal is 1000000 pascal units.
Formula
megapascals = millibars × 0.0001
This factor comes from each unit's defined relationship to the category's base unit: 1 millibar equals 100 base units, and 1 megapascal equals 1000000 base units, so dividing one by the other gives the direct millibar-to-megapascal factor of 0.0001.
Simple example
1 mbar × 0.0001 = 0.0001 MPa
1 millibar = 0.0001 megapascals.
Real-world example
35 mbar × 0.0001 = 0.0035 MPa
35 millibars = 0.0035 megapascals.
Conversion table
| Millibar (mbar) | Megapascal (MPa) |
|---|---|
| 1 mbar | 0.0001 MPa |
| 5 mbar | 0.0005 MPa |
| 10 mbar | 0.001 MPa |
| 25 mbar | 0.0025 MPa |
| 50 mbar | 0.005 MPa |
| 100 mbar | 0.01 MPa |
Reverse conversion: Megapascal to Millibar
0.0001 MPa × 10000 = 1 mbar
0.0001 megapascals = 1 millibar.
millibars = megapascals × 10000
For a page dedicated to this direction, see Megapascal to Millibar.
Understanding the Millibar (mbar)
A millibar is 100 pascals.
Understanding the Megapascal (MPa)
Megapascal is 1000000 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megapascals are in 1 millibar?
1 millibar equals 0.0001 megapascals, using the exact defined conversion factor rather than an estimate.
How do I convert millibar to megapascal?
Multiply the millibar value by 0.0001. The converter above does this instantly to whatever precision you set.
How do I convert megapascal back to millibar?
Use the reverse factor: 1 megapascal equals 10,000 millibars. You can also use the swap control in the converter above to flip the direction instantly.
What is a millibar?
Millibar (mbar) is a unit of pressure.
What is a megapascal?
Megapascal (MPa) is a unit of pressure.
Is the millibar to megapascal conversion exact?
Yes. Both millibar and megapascal are defined by fixed standards rather than physical artifacts, so the factor of 0.0001 used above is exact to as many digits as you choose to display.