Convert Bar to Atmosphere
Use this free converter to change bars (bar) into atmospheres (atm). Bar and atmosphere both measure pressure. As a quick reference, 1 bar equals 0.98692327 atm, and 1 atm equals 1.01325 bar.
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Atmosphere (atm)
0.98692327
1 bar = 0.98692327 atm
Pressure conversion table
| Bar | Atmosphere |
|---|---|
| 0.01 | 0.0098692327 |
| 0.1 | 0.098692327 |
| 0.5 | 0.49346163 |
| 1 | 0.98692327 |
| 2 | 1.9738465 |
| 3 | 2.9607698 |
| 5 | 4.9346163 |
| 10 | 9.8692327 |
| 20 | 19.738465 |
| 25 | 24.673082 |
| 50 | 49.346163 |
| 100 | 98.692327 |
| 1,000 | 986.92327 |
How to convert Bar to Atmosphere
Multiply the bar value by 0.98692327 to get atmospheres.
- Enter the number of bars you want to convert.
- The converter instantly shows the equivalent value in atmospheres.
- Worked example: 15 bar × 0.98692327 = 14.803849 atm.
- Use the swap button to reverse the conversion (atmosphere to bar).
About these units
Bar (bar)
- Definition
- A bar is a metric pressure unit equal to 100,000 pascals, close to average sea-level atmospheric pressure.
- History
- It was introduced by meteorologist Vilhelm Bjerknes in the early 20th century.
- Current use
- Bars are used in meteorology, diving, and industry to express pressure.
Atmosphere (atm)
- Definition
- A standard atmosphere (atm) is defined as exactly 101,325 pascals, roughly average sea-level pressure.
- History
- It was standardised as a reference pressure for scientific work.
- Current use
- Atmospheres are used in chemistry, physics, and diving as a reference pressure.
Frequently asked questions
How many atmospheres are in a bar?
There are 0.98692327 atm in 1 bar. To convert, multiply the number of bars by 0.98692327.
How do I convert bars to atmospheres?
Multiply the bar value by 0.98692327 to get atmospheres. For example, 10 bar = 9.8692327 atm.
Is this bar-to-atmosphere converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Bar to other pressure units
| Unit | 1 Bar equals |
|---|---|
| Pascal (Pa) | 100000 Pa |
| Kilopascal (kPa) | 100 kPa |
| Pound per Square Inch (psi) | 14.503774 psi |
| Atmosphere (atm) | 0.98692327 atm |
| Torr (Torr) | 750.06169 Torr |
| Millibar (mbar) | 1000 mbar |