Atmospheres to Bars Conversion (atm to bar)

Atmospheres to Bars Converter

Enter the pressure in atmospheres below to get the value converted to bars.

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Result in Bars:

1 atm = 1.01325 bar

How to Convert Atmospheres to Bars

To convert a measurement in atmospheres to a measurement in bars, multiply the pressure by the following conversion ratio: 1.01325 bars/atmosphere.

Since one atmosphere is equal to 1.01325 bars, you can use this simple formula to convert:

bars = atmospheres × 1.01325

The pressure in bars is equal to the pressure in atmospheres multiplied by 1.01325.

For example, here's how to convert 5 atmospheres to bars using the formula above.

bars = (5 atm × 1.01325) = 5.06625 bar

Atmospheres and bars are both units used to measure pressure. Keep reading to learn more about each unit of measure.

What Is an Atmosphere?

The atmosphere is a reference measure of pressure equal to 101,325 pascals or 1,013,250 dynes. The atmosphere was originally defined as the pressure of 760 millimeters of mercury at standard gravity at 0 °C, but was later redefined in 1954 to be equal to 1,013,250 dynes.

Atmospheres can be abbreviated as atm; for example, 1 atmosphere can be written as 1 atm.

Learn more about atmospheres.

What Is a Bar?

The bar is equal to 100,000 pascals, which are defined as the pressure of one newton per square meter. One bar is just less than the average atmospheric pressure.

The bar is a non-SI metric unit for pressure. Bars can be abbreviated as bar; for example, 1 bar can be written as 1 bar.

Learn more about bars.

Atmosphere to Bar Conversion Table

Table showing various atmosphere measurements converted to bars.
Atmospheres	Bars
1 atm	1.0133 bar
2 atm	2.0265 bar
3 atm	3.0398 bar
4 atm	4.053 bar
5 atm	5.0663 bar
6 atm	6.0795 bar
7 atm	7.0928 bar
8 atm	8.106 bar
9 atm	9.1193 bar
10 atm	10.13 bar
11 atm	11.15 bar
12 atm	12.16 bar
13 atm	13.17 bar
14 atm	14.19 bar
15 atm	15.2 bar
16 atm	16.21 bar
17 atm	17.23 bar
18 atm	18.24 bar
19 atm	19.25 bar
20 atm	20.27 bar
21 atm	21.28 bar
22 atm	22.29 bar
23 atm	23.3 bar
24 atm	24.32 bar
25 atm	25.33 bar
26 atm	26.34 bar
27 atm	27.36 bar
28 atm	28.37 bar
29 atm	29.38 bar
30 atm	30.4 bar
31 atm	31.41 bar
32 atm	32.42 bar
33 atm	33.44 bar
34 atm	34.45 bar
35 atm	35.46 bar
36 atm	36.48 bar
37 atm	37.49 bar
38 atm	38.5 bar
39 atm	39.52 bar
40 atm	40.53 bar

Table showing various atmosphere measurements converted to bars.

Atmospheres

Bars

1 atm

1.0133 bar

2 atm

2.0265 bar

3 atm

3.0398 bar

4 atm

4.053 bar

5 atm

5.0663 bar

6 atm

6.0795 bar

7 atm

7.0928 bar

8 atm

8.106 bar

9 atm

9.1193 bar

10 atm

10.13 bar

11 atm

11.15 bar

12 atm

12.16 bar

13 atm

13.17 bar

14 atm

14.19 bar

15 atm

15.2 bar

16 atm

16.21 bar

17 atm

17.23 bar

18 atm

18.24 bar

19 atm

19.25 bar

20 atm

20.27 bar

21 atm

21.28 bar

22 atm

22.29 bar

23 atm

23.3 bar

24 atm

24.32 bar

25 atm

25.33 bar

26 atm

26.34 bar

27 atm

27.36 bar

28 atm

28.37 bar

29 atm

29.38 bar

30 atm

30.4 bar

31 atm

31.41 bar

32 atm

32.42 bar

33 atm

33.44 bar

34 atm

34.45 bar

35 atm

35.46 bar

36 atm

36.48 bar

37 atm

37.49 bar

38 atm

38.5 bar

39 atm

39.52 bar

40 atm

40.53 bar