Pressure conversion

Convert Standard atmosphere to Bar

1 standard atmosphere (atm) equals 1.01325 bar (bar). Enter any value below to convert from atm to bar.

Enter a value and choose units. Results update instantly.

1 atm = 1.01325 bar

All Pressure units

From 1 atm
UnitValue
Pascal Pa 101,325
Kilopascal kPa 101.325
Megapascal MPa 0.101325
Bar bar 1.01325
Millibar mbar 1,013.25
Standard atmosphere atm 1
Pound per square inch psi 14.6959487755
Torr Torr 760
Millimeter of mercury mmHg 759.9998917256
Inch of mercury inHg 29.9212524019
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Formula

atm to bar conversion formula

Use this relationship for a direct conversion:

bar = atm x 1.01325

Worked example

2 atm = 2.0265 bar.

Conventional mercury-column units are not measurements adjusted for local temperature or gravity.

Quick reference

Standard atmosphere to Bar table

Standard atmosphere (atm)Bar (bar)
0.010.0101325
0.10.101325
11.01325
22.0265
55.06625
1010.1325
2525.33125
5050.6625
100101.325
1,0001,013.25

From unit

About the standard atmosphere

Exactly 101,325 pascals.

Symbol: atm

To unit

About the bar

Exactly 100,000 pascals.

Symbol: bar

Keep converting

Related conversions

Bar to Standard atmosphereReverse this conversion Standard atmosphere to Pascalatm to PaStandard atmosphere to Kilopascalatm to kPaStandard atmosphere to Megapascalatm to MPaStandard atmosphere to Millibaratm to mbarStandard atmosphere to Pound per square inchatm to psiStandard atmosphere to Torratm to Torr

Source

Conversion standard

Definitions are checked against NIST SP 811: Pressure units. Calculations use full internal precision before display rounding.

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Questions

atm to bar FAQ

How do you convert standard atmosphere to bar?

Use the formula bar = atm x 1.01325. 1 standard atmosphere (atm) equals 1.01325 bar (bar).

Is the atm to bar conversion exact?

Both unit definitions use exact factors. Only the displayed decimal may be rounded.