Bar to Millibar Converter
Convert Bar (bar) to Millibar (mbar) instantly. 1 bar = 1,000 mbar.
Pressure Converter
29 units available
1 bar = 1,000 mbar
Formula:
mbar = bar × 1,000With your value: 1 bar = 1,000 mbar
Other Bar to Millibar conversions
Bar to Millibar Conversion Table
| Bar (bar) | Millibar (mbar) |
|---|---|
| 0.5 | 500 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
Millibar to Bar Conversion Table
| Millibar (mbar) | Bar (bar) |
|---|---|
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 15 | 0.015 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Bar (bar)
Pressure
1 bar = 100 000 Pa exactly.
Source: Units accepted for use with the SI, SI Brochure Table 8
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Millibar (mbar)
Pressure
Derived from the pascal (1 Pa = 1 N/m²). The standard atmosphere is exactly 101 325 Pa.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Bar to Millibar
To convert from Bar (bar) to Millibar (mbar), multiply the value by 1,000.
Formula: mbar = bar × 1,000
Reverse: bar = mbar × 0.001
Step-by-Step Example
- Start with your value in Bar. For example: 5 bar
- Multiply by the conversion factor: 5 x 1,000
- The result is: 5,000 mbar
About Bar
The bar is a metric unit of pressure equal to 100,000 Pascals, roughly equal to atmospheric pressure at sea level.
Common uses: tire pressure, industrial, meteorology.
About Millibar
The millibar (mbar) is a unit of pressure and stress. One millibar equals 100 pascals. UnitConvertLab converts it against every other pressure unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: pressure calculations, engineering and science, education.
Frequently Asked Questions
How many Millibar are in 1 Bar?
There are exactly 1,000 Millibar in 1 Bar. This means the conversion factor from Bar to Millibar is 1,000.
What is the formula to convert Bar to Millibar?
The formula to convert Bar to Millibar is: mbar = bar × 1,000. For example, to convert 10 Bar to Millibar, you would multiply 10 by 1,000.
What is a Bar?
The bar is a metric unit of pressure equal to 100,000 Pascals, roughly equal to atmospheric pressure at sea level.
What is a Millibar?
The millibar (mbar) is a unit of pressure and stress. One millibar equals 100 pascals. UnitConvertLab converts it against every other pressure unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Bar?
The Bar is commonly used in tire pressure, industrial, meteorology.
Related Pressure Conversions
Cite this page
UnitConvertLab. (2026). Bar to Millibar converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/bar-to-millibar