CALCULATOR
Millibars to Standard Atmospheres Converter
Convert millibars to standard atmospheres. Enter a value to update the result.
How the calculation works
Standard Atmospheres = Millibars × 0.000986923266716.
Worked example
With millibars 1 mbar, standard atmospheres is 0.0009869232667 atm.
Assumptions and limits
Uses the standard atmosphere: 1 atm = 101,325 Pa exactly. Converting units preserves the supplied pressure reference.