Convert atm to bar
Standard atmospheres to bar. Enter a value to convert, or use the atm to bar chart further down the page.
1 standard atmosphere equals 1.01325 bar. Going the other way, 1 bar = 0.9869232667 standard atmospheres.
How to convert atm to bar
To convert standard atmospheres to bar, multiply the standard atmosphere value by 1.01325. You can also divide by 0.9869232667 to get the same answer.
bar = atm × 1.01325
Worked example
Convert 15 atm to bar:
15 atm = 15.19875 bar
atm to bar conversion chart
Use this atm to bar table for quick reference without typing anything.
| standard atmospheres (atm) | bar (bar) |
|---|---|
| 0.01 atm | 0.0101325 bar |
| 0.1 atm | 0.101325 bar |
| 1 atm | 1.01325 bar |
| 2 atm | 2.0265 bar |
| 3 atm | 3.03975 bar |
| 5 atm | 5.06625 bar |
| 10 atm | 10.1325 bar |
| 20 atm | 20.265 bar |
| 50 atm | 50.6625 bar |
| 100 atm | 101.325 bar |
| 1,000 atm | 1,013.25 bar |
What is a standard atmosphere?
The standard atmosphere is defined as exactly 101,325 pascals — the reference sea-level pressure.
What is a bar?
One bar is exactly 100,000 pascals, very close to average atmospheric pressure at sea level.
Frequently asked questions
How many bar are in a standard atmosphere?
1 atm equals 1.01325 bar. Going the other way, 1 bar is 0.9869232667 atm.
How do you convert atm to bar?
To convert standard atmospheres to bar, multiply the standard atmosphere value by 1.01325. You can also divide by 0.9869232667 to get the same answer.
What is 10 atm in bar?
10 atm equals 10.1325 bar. The conversion chart on this page lists the other values people look up most often.
Related pressure conversions
Convert atm to other units
Convert other units to bar
Popular conversions
cm to inchesinches to cmkg to lbslbs to kgCelsius to FahrenheitFahrenheit to Celsiusmm to inchesinches to mmkm to milesmiles to kmmeters to feetfeet to meterscm to feetfeet to inchesinches to feetml to fl ozfl oz to mlliters to gallonsgallons to literscups to ml