Millibar to Bar

1 mbar = 0.001 bar

Value

From

Precision & format

Significant figures

Notation

1 mbar equals

0.001bar

All 18 units

PascalPa
100
KilopascalkPa
0.1
MegapascalMPa
0.0001
HectopascalhPa
= 1 mbar
1
Barbar
0.001
Millibarmbar
1
Standard atmosphereatm
0.0009869232667
Pound per square inchpsi
0.01450377377
Kilopound per square inchksi
0.00001450377377
Pound per square footpsf
2.088543423
TorrTorr
1/760 atm
0.7500616827
Millimeter of mercurymmHg
conventional
0.7500615758
Centimeter of mercurycmHg
0.07500615758
Inch of mercuryinHg
conventional
0.02952998016
Millimeter of watermmH₂O
conventional
10.19716213
Meter of watermH₂O
0.01019716213
Inch of waterinH₂O
at 4 °C
0.4014630787
Kilogram-force per cm²kgf/cm²
technical atmosphere
0.001019716213

Millibar to Bar table

Common Millibar values converted to Bar
Millibar (mbar)	Bar (bar)
1	0.001
2	0.002
5	0.005
10	0.01
20	0.02
50	0.05
100	0.1
250	0.25
500	0.5
1,000	1

How the conversion works

Multiply the millibar figure by 0.001 to get bar. Every factor on this site is anchored to the SI base unit for pressure, so the same number is used everywhere it appears.

Going the other way, 1 bar = 1,000 mbar — see bar to millibar.

See all 18 pressure units →