Convert Atmospheres to Millibar

Atmospheres → Millibar
atm × 1013.25 = mbar mbar × 0.0009869233 = atm

To convert atmospheres (atm) to millibar (mbar), multiply the atmospheres value by 1013.25. 1 atm = 1013.25 mbar, and 1 mbar = 0.0009869233 atm. The conversion is a linear scaling with no offset, so the same factor applies to any value.

Going the other way? Convert mbar to atm.

atm to mbar table
Atmospheres (atm) Millibar (mbar)
0.1 atm 101.325 mbar
0.5 atm 506.625 mbar
1 atm 1013.25 mbar
2 atm 2026.5 mbar
5 atm 5066.25 mbar
10 atm 10132.5 mbar
20 atm 20265 mbar
50 atm 50662.5 mbar
100 atm 101325 mbar
500 atm 506625 mbar
1000 atm 1013250 mbar