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Open toolStandard atmospheres to Millibars
Convert standard atmospheres (atm) to millibars (mbar) with a copyable result.
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THE QUICK GUIDE
How to use standard atmospheres to millibars
Enter a value in standard atmospheres, choose your display precision, and select Convert. Use Swap units to calculate the reverse direction.
How it works
Pressure conversion: multiply the value in atm by 1013.25 to obtain mbar. Both units are related through pascals.
A useful example
1 atm = 1013.25 mbar.
Good to know
Uses pressure units as labelled. Floating-point arithmetic is approximate; results show up to 12 significant digits. Very large or small results use scientific notation.