Bar to millibars converter

Convert bar to millibars (mbar).

Pressure converter

Instant conversion

Edit either value. Decimals and scientific notation supported.

From value

bar

From unit

To value

mbar

To unit

CONVERSION

1 bar ≈ 1000 mbar

Display precision

Precision changes displayed rounding, not calculation accuracy.

FORMULAmbar = bar × 1000

FORMULA & EXAMPLES

How to convert Bar to millibars

mbar = bar × 1000

Multiply the bar reading by 1000.

Worked examples

1 bar ≈ 1000 mbar

1 × 1000 ≈ 1000

2.5 bar ≈ 2500 mbar

2.5 × 1000 ≈ 2500

Frequently asked questions

Does bar to mbar change gauge pressure into absolute pressure?

No. Unit conversion preserves the original pressure reference. Converting a gauge reading to absolute pressure additionally requires the applicable atmospheric pressure.

Bar to millibars table

Fixed reference · Bar to Millibar

Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.

Bar (bar)	Millibar (mbar)
0	0
0.1	100
0.5	500
1	1000
2	2000
5	5000
10	10000
25	25000
50	50000
100	100000
1000	1000000

Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.