Bar to Atmosphere
Convert Bar to Atmosphere instantly. Free online pressure unit converter with exact formula, conversion table and FAQ.
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Formula
atmosphere = bar × 0.986923
bar = atmosphere × 1.01325
Conversion table
| 1 bar | 0.986923 atm |
| 5 bar | 4.934616 atm |
| 10 bar | 9.869233 atm |
| 20 bar | 19.738465 atm |
| 50 bar | 49.346163 atm |
| 100 bar | 98.692327 atm |
| 500 bar | 493.461633 atm |
| 1000 bar | 986.923267 atm |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the bar (bar). A bar is exactly 100,000 pascals.
What is the destination unit in this conversion?
The destination unit is the atmosphere (atm). A standard atmosphere is exactly 101,325 pascals.
How do I convert bar to atmosphere?
Multiply the bar value by 0.986923. For example, 10 bar × 0.986923 = 9.869233 atm.
Is the bar to atmosphere conversion exact?
Yes. Both units are defined as fixed multiples of the pascal, the SI-derived unit of pressure, so the conversion factor follows directly from those exact definitions rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in bar needs to be compared with, or reported in, atmosphere, such as in engineering specifications, weather readings, tire pressure, or industrial and scientific work.
Can I convert atmosphere back to bar?
Yes. Multiply the atmosphere value by 1.01325 to get bar.
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About this conversion
This page converts bar (bar) to atmosphere (atm) within the pressure converter.
A bar is exactly 100,000 pascals. A standard atmosphere is exactly 101,325 pascals.
The formula is atmosphere = bar × 0.986923, based on each unit's fixed relationship to the pascal, the pressure converter's base unit.
The conversion is exact, since both units are tied to the pascal by a fixed numerical ratio rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common bar values already converted to atmosphere.