Bar to Millibar
Convert Bar to Millibar instantly. Free online pressure unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Context values
Some unit families need one extra value for a physically accurate result.
Use the converter to see the formula.
Results update instantly for Bar to Millibar conversions.
Reserved above the conversion cards and below the converter.
Formula
millibar = bar × 1000
bar = millibar × 0.001
Conversion table
| 1 bar | 1000 mbar |
| 5 bar | 5000 mbar |
| 10 bar | 10000 mbar |
| 20 bar | 20000 mbar |
| 50 bar | 50000 mbar |
| 100 bar | 100000 mbar |
| 500 bar | 500000 mbar |
| 1000 bar | 1.000000e+06 mbar |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
What is the source unit in this conversion?
The source unit is the bar (bar). A bar is exactly 100,000 pascals.
What is the destination unit in this conversion?
The destination unit is the millibar (mbar). A millibar is 100 pascals.
How do I convert bar to millibar?
Multiply the bar value by 1000. For example, 10 bar × 1000 = 10000 mbar.
Is the bar to millibar conversion exact?
Yes. Both units are defined as fixed multiples of the pascal, the SI-derived unit of pressure, so the conversion factor follows directly from those exact definitions rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in bar needs to be compared with, or reported in, millibar, such as in engineering specifications, weather readings, tire pressure, or industrial and scientific work.
Can I convert millibar back to bar?
Yes. Multiply the millibar value by 0.001 to get bar.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts bar (bar) to millibar (mbar) within the pressure converter.
A bar is exactly 100,000 pascals. A millibar is 100 pascals.
The formula is millibar = bar × 1000, based on each unit's fixed relationship to the pascal, the pressure converter's base unit.
The conversion is exact, since both units are tied to the pascal by a fixed numerical ratio rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common bar values already converted to millibar.