Bars to Standard Atmospheres Converter
Convert bars (bar) to standard atmospheres (atm), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter a pressure, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 bar = 0.986923266716 atm
- 1 × 0.986923266716 = 0.986923266716 atm
How to convert bars to standard atmospheres
1 bar = 0.986923266716 atm, so multiply by 0.986923266716 to go from bars to standard atmospheres. Going the other way, 1 atm = 1.01325 bar.
atm = bar × 0.986923266716 bar = atm × 1.01325
Worked example:
1 bar = 0.986923266716 atm 5 × 0.986923266716 = 4.93461633358 atm
Bars to standard atmospheres table
| Bars | Standard Atmospheres |
|---|---|
| 1 bar | 0.986923266716 atm |
| 2 bar | 1.97384653343 atm |
| 3 bar | 2.96076980015 atm |
| 4 bar | 3.94769306686 atm |
| 5 bar | 4.93461633358 atm |
| 6 bar | 5.9215396003 atm |
| 7 bar | 6.90846286701 atm |
| 8 bar | 7.89538613373 atm |
| 9 bar | 8.88230940044 atm |
| 10 bar | 9.86923266716 atm |
| 15 bar | 14.8038490007 atm |
| 20 bar | 19.7384653343 atm |
| 25 bar | 24.6730816679 atm |
| 30 bar | 29.6076980015 atm |
| 40 bar | 39.4769306686 atm |
| 50 bar | 49.3461633358 atm |
| 75 bar | 74.0192450037 atm |
| 100 bar | 98.6923266716 atm |
| 250 bar | 246.730816679 atm |
| 500 bar | 493.461633358 atm |
| 1000 bar | 986.923266716 atm |
About the units
- Bars (bar)
- Bars, a metric unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
- Standard Atmospheres (atm)
- Standard atmospheres, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.