atm → mbar converter

Convert atmospheres to millibar (Pressure)

1 atm = 1013.25 mbar · 1 mbar = 0.0009869232667 atm

Common values: 2 atm 5 atm 10 atm 50 atm 100 atm

2 atm = 2026.5 mbar

Advertisement

Table Of Contents

Atmospheres to millibar Conversion

1 atmospheres (atm) is equal to 1013.25 millibar (mbar).

1 atm = 1013.25 mbar

or

1 mbar = 0.0009869232667 atm

Formula

To convert a pressure from atmospheres (atm) to millibar (mbar), multiply the pressure in atmospheres by 1013.25

p(mbar) = p(atm) × 1013.25

Examples:

Convert 2 atmospheres to millibar:

p(mbar) = 2atm × 1013.25 = 2026.5 mbar

Conversion table

Atmospheres (atm) Millibar (mbar)
1 atm 1013.25 mbar
2 atm 2026.5 mbar
3 atm 3039.75 mbar
5 atm 5066.25 mbar
10 atm 10132.5 mbar
20 atm 20265 mbar
25 atm 25331.25 mbar
50 atm 50662.5 mbar
100 atm 101325 mbar
250 atm 253312.5 mbar
500 atm 506625 mbar
1000 atm 1013250 mbar
Millibar (mbar) Atmospheres (atm)
1 mbar 9.86923e-4 atm
2 mbar 0.001973847 atm
3 mbar 0.00296077 atm
5 mbar 0.004934616 atm
10 mbar 0.009869233 atm
20 mbar 0.019738465 atm
25 mbar 0.024673082 atm
50 mbar 0.049346163 atm
100 mbar 0.098692327 atm
250 mbar 0.246730817 atm
500 mbar 0.493461633 atm
1000 mbar 0.986923267 atm

Frequently asked questions

How do I convert atmospheres to millibar?

Multiply the value in atmospheres by 1013.25 to get the result in millibar. For example, 5 atm × 1013.25 = 5066.25 mbar.

How many millibar are in 1 atmospheres?

1 atmospheres (atm) is equal to 1013.25 millibar (mbar).

How do I convert millibar back to atmospheres?

Use the inverse operation: divide the value in millibar by 1013.25 to get the result in atmospheres.

How accurate is the atmospheres to millibar conversion?

The converter multiplies by the conversion factor 1013.25 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.

Sources

Conversion factors are based on internationally recognised standards:

Related conversions

Unit Converter