Convert Millibar to Bar
Use this free converter to change millibars (mbar) into bars (bar). Millibar and bar both measure pressure. As a quick reference, 1 mbar equals 0.001 bar, and 1 bar equals 1000 mbar.
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Bar (bar)
0.001
1 mbar = 0.001 bar
Pressure conversion table
| Millibar | Bar |
|---|---|
| 0.01 | 0.00001 |
| 0.1 | 0.0001 |
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1,000 | 1 |
How to convert Millibar to Bar
Multiply the millibar value by 0.001 to get bars.
- Enter the number of millibars you want to convert.
- The converter instantly shows the equivalent value in bars.
- Worked example: 15 mbar × 0.001 = 0.015 bar.
- Use the swap button to reverse the conversion (bar to millibar).
About these units
Millibar (mbar)
- Definition
- A millibar (mbar) is one thousandth of a bar, equal to 100 pascals (one hectopascal).
- History
- It became the traditional unit of meteorological pressure in the 20th century.
- Current use
- Millibars (or equivalent hectopascals) report atmospheric pressure on weather charts.
Bar (bar)
- Definition
- A bar is a metric pressure unit equal to 100,000 pascals, close to average sea-level atmospheric pressure.
- History
- It was introduced by meteorologist Vilhelm Bjerknes in the early 20th century.
- Current use
- Bars are used in meteorology, diving, and industry to express pressure.
Frequently asked questions
How many bars are in a millibar?
There are 0.001 bar in 1 mbar. To convert, multiply the number of millibars by 0.001.
How do I convert millibars to bars?
Multiply the millibar value by 0.001 to get bars. For example, 10 mbar = 0.01 bar.
Is this millibar-to-bar converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Millibar to other pressure units
| Unit | 1 Millibar equals |
|---|---|
| Pascal (Pa) | 100 Pa |
| Kilopascal (kPa) | 0.1 kPa |
| Bar (bar) | 0.001 bar |
| Pound per Square Inch (psi) | 0.014503774 psi |
| Atmosphere (atm) | 0.00098692327 atm |
| Torr (Torr) | 0.75006169 Torr |