Conversions

Millibar to Bar

Convert millibar to bar (mbar to bar). 1 mbar = 0.001 bar. Use the calculator, formula and conversion table.

A quick reference1 mbar = 0.001 bar
Bar to Millibar
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How to convert millibar to bar

Multiply the amount in millibar by 0.001 to get bar. The displayed factor and results are rounded to 12 significant digits.

bar = mbar × 0.001

Worked example

1 mbar = 0.001 bar. Change the amount in the calculator above to use your own value.

Units and assumptions

Uses pascals as the base unit. One standard atmosphere is 101,325 Pa and one bar is 100,000 Pa. Results are rounded for display.

Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.

Millibar to Bar table

Common values, rounded for display
Millibar (mbar)Bar (bar)
00
10.001
50.005
100.01
250.025
1000.1
1,0001

About this conversion

What is the formula for millibar to bar?

bar = mbar × 0.001. Multiply the amount in millibar by 0.001 to get bar. The displayed factor and results are rounded to 12 significant digits.

How do I convert back to millibar?

Use the bar to millibar calculator to reverse this conversion. You can also use Swap units in the calculator above.

Can I use a different pair of units?

Choose another unit in the calculator, or open the pressure converter to browse all supported pairs.

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