Convert atm to bar
1 standard atmosphere equals 1.01325 bars. Enter a value below to convert instantly.
Multiply the number of standard atmospheres by 1.01325 to get bars. How this is calculated
Need the other direction? Convert bar to standard atmosphere →
Formula
Multiply the number of standard atmospheres by 1.01325 to get bars.
Step by step
- Start with 1 atm.
- Multiply by the conversion factor 1.01325.
- 1 × 1.01325 = 1.01325 bar.
Standard Atmospheres to Bars conversion table
| Standard Atmospheres (atm) | Bars (bar) |
|---|---|
| 1 | 1.01325 |
| 2 | 2.0265 |
| 5 | 5.06625 |
| 10 | 10.1325 |
| 20 | 20.265 |
| 50 | 50.6625 |
| 100 | 101.325 |
| 500 | 506.625 |
| 1,000 | 1,013.25 |
Convert Standard Atmosphere to other pressure units
1 atm expressed in every other pressure unit on this site.
- Pascal Pa 101,325
- Kilopascal kPa 101.325
- Megapascal MPa 0.101325
- Gigapascal GPa 0.000101325
- Hectopascal hPa 1,013.25
- Decipascal dPa 1,013,250
- Millipascal mPa 101,325,000
- Micropascal µPa 101,325,000,000
- Nanopascal nPa 101,325,000,000,000
- Picopascal pPa 1.01325e+17
- Femtopascal fPa 1.01325e+20
- Attopascal aPa 1.01325e+23
- Centipascal cPa 10,132,500
- Dekapascal daPa 10,132.5
- Terapascal TPa 1.01325e-7
- Petapascal PPa 1.01325e-10
- Exapascal EPa 1.01325e-13
- Newton per Square Centimeter N/cm² 10.1325
- Newton per Square Millimeter N/mm² 0.101325
- Bar bar 1.01325
- Millibar mbar 1,013.25
- Microbar µbar 1,013,250
- Dyne per Square Centimeter dyn/cm² 1,013,250
- Standard Atmosphere atm 1
- Technical Atmosphere at 1.0332275
- Torr Torr 760
- Millitorr mTorr 760,000
- Pound per Square Inch psi 14.695949
- Kip per Square Inch ksi 0.014695949
- Pound per Square Foot psf 2,116.2166
- Poundal per Square Foot pdl/ft² 68,087.256
- Short Ton-force per Square Foot tonf/ft² (US) 1.0581083
- Long Ton-force per Square Foot tonf/ft² (UK) 0.94473956
- Short Ton-force per Square Inch tonf/in² (US) 0.0073479744
- Long Ton-force per Square Inch tonf/in² (UK) 0.0065606914
- Kilogram-force per Square Meter kgf/m² 10,332.275
- Kilogram-force per Square Centimeter kgf/cm² 1.0332275
- Kilogram-force per Square Millimeter kgf/mm² 0.010332275
- Gram-force per Square Centimeter gf/cm² 1,033.2275
- Millimeter of Mercury mmHg 759.99989
- Centimeter of Mercury cmHg 75.999989
- Inch of Mercury inHg 29.921256
- Millimeter of Water mmH₂O 10,332.275
- Centimeter of Water cmH₂O 1,033.2275
- Meter of Water mH₂O 10.332275
- Inch of Water inH₂O 406.78246
- Foot of Water ftH₂O 33.900353
- Inch of Mercury (60 °F) inHg (60 °F) 30.005775
- Inch of Water (60 °F) inH₂O (60 °F) 407.18445
- Foot of Water (60 °F) ftH₂O (60 °F) 33.932037
About the standard atmosphere
The standard atmosphere (atm) is a Other unit of pressure.
About the bar
The bar (bar) is a Metric unit of pressure.
Where this conversion is used
Converting standard atmospheres to bars comes up when tire inflation, weather forecasting, diving, and industrial systems.
Related conversions
Frequently asked questions
How many bars are in a standard atmosphere?
One standard atmosphere equals 1.01325 bars.
How do you convert standard atmospheres to bars?
Multiply the number of standard atmospheres by 1.01325 to get bars.
What is 1 bar in standard atmospheres?
One bar equals 0.98692327 standard atmospheres.
When would I convert standard atmospheres to bars?
This conversion is common when tire inflation, weather forecasting, diving, and industrial systems.
Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.