Convert Bars to Atmospheres

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

Results in Atmospheres:
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1 bar = 0.986923 atm
Do you want to convert atmospheres to bars?

How to Convert Bars to Atmospheres

Calculators can be used to convert measurements from one unit to another

To convert a bar measurement to a atmosphere measurement, multiply the pressure by the conversion ratio. One bar is equal to 0.986923 atmospheres, so use this simple formula to convert:

atmospheres = bars × 0.986923

The pressure in atmospheres is equal to the bars multiplied by 0.986923.

For example, here's how to convert 5 bars to atmospheres using the formula above.
5 bar = (5 × 0.986923) = 4.934616 atm

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


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.


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.

Bar Measurements and Equivalent Atmosphere Conversions

Common bar values converted to the equivalent atmosphere value
Bars Atmospheres
1 bar 0.986923 atm
2 bar 1.9738 atm
3 bar 2.9608 atm
4 bar 3.9477 atm
5 bar 4.9346 atm
6 bar 5.9215 atm
7 bar 6.9085 atm
8 bar 7.8954 atm
9 bar 8.8823 atm
10 bar 9.8692 atm
11 bar 10.86 atm
12 bar 11.84 atm
13 bar 12.83 atm
14 bar 13.82 atm
15 bar 14.8 atm
16 bar 15.79 atm
17 bar 16.78 atm
18 bar 17.76 atm
19 bar 18.75 atm
20 bar 19.74 atm
21 bar 20.73 atm
22 bar 21.71 atm
23 bar 22.7 atm
24 bar 23.69 atm
25 bar 24.67 atm
26 bar 25.66 atm
27 bar 26.65 atm
28 bar 27.63 atm
29 bar 28.62 atm
30 bar 29.61 atm
31 bar 30.59 atm
32 bar 31.58 atm
33 bar 32.57 atm
34 bar 33.56 atm
35 bar 34.54 atm
36 bar 35.53 atm
37 bar 36.52 atm
38 bar 37.5 atm
39 bar 38.49 atm
40 bar 39.48 atm

More Bar Pressure Conversions

Convert to Pascals
1 bar is equal to 100,000 pascals
Convert to Hectopascals
1 bar is equal to 1,000 hectopascals
Convert to Millibars
1 bar is equal to 1,000 millibars
Convert to Kilograms Per Square Centimeter
1 bar is equal to 1.019716 kilograms per square centimeter
Convert to Kilograms Per Square Meter
1 bar is equal to 10,197.2 kilograms per square meter
Convert to Pounds Per Square Inch
1 bar is equal to 14.503789 pounds per square inch
Convert to Pounds Per Square Foot
1 bar is equal to 2,088.55 pounds per square foot
Convert to Torr
1 bar is equal to 750.061683 torr

Unit of Measurement Conversion Made Easy!

There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold of the typical dry and complicated experience. In addition to converting from one measurement to another, we provide the formula so you can see how the conversion is done, use it on you’re own calculator if you need to!

Convert units of length, weight, volume, and area between imperial and metric measures

Understanding the Metric System

The metric system makes it relatively easy to convert from one metric unit to another metric unit. The metric system uses a base unit, think meters or grams, and a prefix such as kilo or milli. The prefixes differ from the base units by differing powers of 10. So to convert within the metric system it’s usually a matter of multiplying or dividing by one of the powers of 10.

Here is a list of some of the common metric prefixes:

  • “kilo” – 1,000x larger
  • “hecto” – 100x larger
  • “deca” – 10x larger
  • “deci” – 10x smaller
  • “centi” – 100x smaller
  • “milli” – 1,000x smaller

There is a helpful mnemonic for remembering the prefixes: “King Henry Died Until Drinking Chocolate Milk.”
The u in Until refers to the base unit.