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    Atmosphere (std) to Bar Converter

    Convert Atmosphere (std) (atm) to Bar (bar) instantly. 1 atm = 1.01325 bar.

    Pressure Converter

    29 units available

    Decimals:
    1.01325

    1 atm = 1.01325 bar

    Formula:

    bar = atm × 1.01325

    With your value: 1 atm = 1.01325 bar

    Other Atmosphere (std) to Bar conversions

    2 atm to bar3 atm to bar4 atm to bar5 atm to bar6 atm to bar7 atm to bar8 atm to bar

    Atmosphere (std) to Bar Conversion Table

    Atmosphere (std) (atm)Bar (bar)
    0.50.506625
    11.01325
    22.0265
    55.06625
    1010.1325
    1515.19875
    2020.265
    2525.33125
    5050.6625
    100101.325
    250253.3125
    500506.625
    10001,013.25

    Bar to Atmosphere (std) Conversion Table

    Bar (bar)Atmosphere (std) (atm)
    0.50.493462
    10.986923
    21.973847
    54.934616
    109.869233
    1514.803849
    2019.738465
    2524.673082
    5049.346163
    10098.692327
    250246.730817
    500493.461633
    1000986.923267

    Where these values come from

    Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

    Atmosphere (std) (atm)

    Pressure

    Exact conversion

    The standard atmosphere is exactly 101 325 Pa.

    Source: Units accepted for use with the SI, SI Brochure Table 8

    Bureau International des Poids et Mesures · Reviewed 2026-07-01

    Bar (bar)

    Pressure

    Exact conversion

    1 bar = 100 000 Pa exactly.

    Source: Units accepted for use with the SI, SI Brochure Table 8

    Bureau International des Poids et Mesures · Reviewed 2026-07-01

    How to Convert Atmosphere (std) to Bar

    To convert from Atmosphere (std) (atm) to Bar (bar), multiply the value by 1.01325.

    Formula: bar = atm × 1.01325

    Reverse: atm = bar × 0.9869232667

    Step-by-Step Example

    1. Start with your value in Atmosphere (std). For example: 5 atm
    2. Multiply by the conversion factor: 5 x 1.01325
    3. The result is: 5.06625 bar

    About Atmosphere (std)

    One standard atmosphere equals 101,325 Pascals and represents the average air pressure at sea level.

    Common uses: diving, weather, chemistry.

    About Bar

    The bar is a metric unit of pressure equal to 100,000 Pascals, roughly equal to atmospheric pressure at sea level.

    Common uses: tire pressure, industrial, meteorology.

    Frequently Asked Questions

    How many Bar are in 1 Atmosphere (std)?

    There are exactly 1.01325 Bar in 1 Atmosphere (std). This means the conversion factor from Atmosphere (std) to Bar is 1.01325.

    What is the formula to convert Atmosphere (std) to Bar?

    The formula to convert Atmosphere (std) to Bar is: bar = atm × 1.01325. For example, to convert 10 Atmosphere (std) to Bar, you would multiply 10 by 1.01325.

    What is a Atmosphere (std)?

    One standard atmosphere equals 101,325 Pascals and represents the average air pressure at sea level.

    What is a Bar?

    The bar is a metric unit of pressure equal to 100,000 Pascals, roughly equal to atmospheric pressure at sea level.

    What are the common uses of Atmosphere (std)?

    The Atmosphere (std) is commonly used in diving, weather, chemistry.

    Related Pressure Conversions

    Pascal → BarKilopascal → BarMegapascal → BarGigapascal → BarHectopascal → BarMillibar → BarAtmosphere (std) → PascalAtmosphere (std) → KilopascalAtmosphere (std) → Megapascal

    Cite this page

    UnitConvertLab. (2026). Atmosphere (std) to Bar converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/atmosphere-to-bar