At One Place

Standard atmospheres to bars

1 standard atmosphere in bars
1 atm = 1.01325 bar
bar = atm × 1.01325

To convert standard atmospheres to bars, multiply by 1.01325. The table below gives the values people look up most often, and the converter works for any number.

Standard atmospheres to bars table

Common standard atmosphere values converted to bars.
Standard atmospheres Bars
1 atm 1.01325
2 atm 2.0265
3 atm 3.03975
4 atm 4.053
5 atm 5.06625
10 atm 10.1325
15 atm 15.19875
20 atm 20.265
25 atm 25.33125
30 atm 30.3975
40 atm 40.53
50 atm 50.6625
75 atm 75.99375
100 atm 101.325
250 atm 253.3125
500 atm 506.625
1,000 atm 1,013.25

How the conversion works

The relationship is bar = atm × 1.01325. Both units measure pressure, so the conversion is a fixed factor that never changes.

Common questions

How many bars are in one standard atmosphere?
One standard atmosphere equals 1.01325 bars. bar = atm × 1.01325.
How do you convert standard atmospheres to bars?
Use bar = atm × 1.01325. So 10 atm is 10.1325 bar.
How many standard atmospheres are in one bar?
One bar equals 0.98692 standard atmospheres, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked