Pressure
bar to atm Converter
1 bar = 0.98692 atm. Enter any value and the result updates instantly.
Convert
Accuracy and rounding
Useful for tires, pumps, HVAC, weather, and technical specs. Check whether your source uses gauge or absolute pressure.
Pressure factors are fixed, but real-world readings may be gauge pressure or absolute pressure depending on the instrument.
For tires and pumps, match the gauge precision. For engineering specs, keep enough decimals to avoid tolerance drift.
How to convert bar to atm
- Type the bar value in the calculator.
- Keep bar selected as the from unit and atm selected as the to unit.
- Use the instant result, or copy it with the copy button.
bar to atm chart
| bar | atm |
|---|---|
| 1 bar | 0.98692 atm |
| 2 bar | 1.9738 atm |
| 5 bar | 4.9346 atm |
| 10 bar | 9.8692 atm |
| 25 bar | 24.6731 atm |
| 50 bar | 49.3462 atm |
| 100 bar | 98.6923 atm |
Formula
atm = bar x 0.986923266716
Example: 1 bar = 0.98692 atm.
Source
Pressure units derived from pascal relationships and fixed conventional factors.
Common questions
How do I convert bar to atm?
Enter the bar value in the converter, or multiply by the factor shown in the formula. 1 bar = 0.98692 atm.
What should I watch out for?
Check whether the original value is gauge pressure or absolute pressure before comparing readings.
Where does this pressure conversion come from?
Pressure units derived from pascal relationships and fixed conventional factors. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.