Convert bars to millibars
1 bar = 1000 mbar — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
More converter tools
Readable results
Ranges, ± tolerances, feet/inches and clock durations work in the value field.
Unit picker
Export this result
Show this value in all 27 pressure & stress units
- Gigapascals GPa 0.0001
- Megapascals MPa 0.1
- Kilopascals kPa 100
- Hectopascals hPa 1000
- Pascals Pa 100 000
- Millipascals mPa 100 000 000
- Micropascals µPa 100 000 000 000
- Bars bar 1
- Millibars mbar 1000
- Atmosphere (standard)s atm 0.986 923 266 716
- Atmosphere (technical)s at 1.019 716 212 98
- Torrs Torr 750.061 682 704
- Millitorrs mTorr 750 061.682 704
- Millimeter of mercurys mmHg 750.061 575 846
- Centimeter of mercurys cmHg 75.006 157 584 6
- Inch of mercurys inHg 29.529 983 301
- Millimeter of waters mmH₂O 10 197.162 129 8
- Centimeter of waters cmH₂O 1019.716 212 98
- Inch of waters inH₂O 401.463 075 976
- Foot of waters ftH₂O 33.455 256 331 3
- Pound per square inchs psi 14.503 773 773
- Kilopound per square inchs ksi 0.014 503 773 773
- Pound per square foots psf 2088.543 423 32
- Kilogram-force per square centimeters kgf/cm² 1.019 716 212 98
- Kilogram-force per square meters kgf/m² 10 197.162 129 8
- Newton per square millimeters N/mm² 0.1
- Dyne per square centimeters dyn/cm² 1 000 000
Every row is Bar converted through the pascal, in exact rational arithmetic.
How to convert bars to millibars
Multiply the number of bars by 1000 to get millibars.
The exact factor is 1000 .
Bar: Exactly 100 kPa. Close to atmospheric pressure, which is why it caught on.
Millibar: Identical to the hectopascal used on modern weather charts.
Bar to Millibar conversion table
| Bars (bar) | Millibars (mbar) |
|---|---|
| 1 bar | 1000 |
| 2 bar | 2000 |
| 3 bar | 3000 |
| 5 bar | 5000 |
| 10 bar | 10 000 |
| 20 bar | 20 000 |
| 25 bar | 25 000 |
| 50 bar | 50 000 |
| 100 bar | 100 000 |
| 250 bar | 250 000 |
| 500 bar | 500 000 |
| 1000 bar | 1 000 000 |
Millibar to Bar conversion table
| Millibars (mbar) | Bars (bar) |
|---|---|
| 1 mbar | 0.001 |
| 2 mbar | 0.002 |
| 3 mbar | 0.003 |
| 5 mbar | 0.005 |
| 10 mbar | 0.01 |
| 20 mbar | 0.02 |
| 25 mbar | 0.025 |
| 50 mbar | 0.05 |
| 100 mbar | 0.1 |
| 250 mbar | 0.25 |
| 500 mbar | 0.5 |
| 1000 mbar | 1 |
Frequently asked
How many millibars are in a bar?
One bar equals 1000 millibars (bar → mbar). That figure is exact, not rounded.
How do you convert bars to millibars?
Multiply the number of bars by 1000 to get millibars.
What is 1 mbar in bars?
One millibar is 0.001 bars.
What is 10 bar in mbar?
10 bar = 10 000 mbar.
What exactly is a bar?
Exactly 100 kPa. Close to atmospheric pressure, which is why it caught on.
What exactly is a millibar?
Identical to the hectopascal used on modern weather charts.