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Bars to Atmospheres Converter

1 bar = 0.9869232667 atm. Type any value to convert bars to atmospheres.

1 bar = 0.9869232667 atm

Formula: atm = bar ÷ 1.01325

Common values
Decimals
In every unit 13 units
Pascal (Pa) 100,000 Pa
Hectopascal (hPa) 1,000 hPa
Kilopascal (kPa) 100 kPa
Megapascal (MPa) 0.1 MPa
Millibar (mbar) 1,000 mbar
Bar (bar) 1 bar
Standard atmosphere (atm) 0.9869232667 atm
Technical atmosphere (at) 1.019716213 at
Pound per square inch (psi) 14.50377377 psi
Millimeter of mercury (mmHg) 750.0615758 mmHg
Torr (Torr) 750.0616827 Torr
Inch of mercury (inHg) 29.52998016 inHg
Inch of water (inH₂O) 401.463076 inH₂O

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If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 6 hours so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Calculated in your browser – nothing you type is sent anywhere. Privacy details

Bars to atmospheres table

Formula: atm = bar ÷ 1.01325

Bar (bar)Standard atmosphere (atm)
0.1 bar0.09869232667 atm
0.25 bar0.2467308167 atm
0.5 bar0.4934616334 atm
1 bar0.9869232667 atm
2 bar1.973846533 atm
3 bar2.9607698 atm
4 bar3.947693067 atm
5 bar4.934616334 atm
6 bar5.9215396 atm
7 bar6.908462867 atm
8 bar7.895386134 atm
9 bar8.8823094 atm
10 bar9.869232667 atm
12 bar11.8430792 atm
15 bar14.803849 atm
20 bar19.73846533 atm
25 bar24.67308167 atm
30 bar29.607698 atm
40 bar39.47693067 atm
50 bar49.34616334 atm
60 bar59.215396 atm
75 bar74.019245 atm
100 bar98.69232667 atm
150 bar148.03849 atm
200 bar197.3846533 atm
250 bar246.7308167 atm
500 bar493.4616334 atm
1,000 bar986.9232667 atm

How to use: Bars to Atmospheres

  1. 1 Type the value in bars.
  2. 2 The result in atmospheres appears at once – or type in the atmospheres field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of pressure.

About this tool

Bar (bar) is a unit of pressure (metric, accepted for use with the SI); 1 bar = 100,000 Pa. Standard atmosphere (atm) is a unit of pressure; 1 atm = 101,325 Pa.

To convert bars to atmospheres, divide the value by 1.01325 (atm = bar ÷ 1.01325). Example: 2.5 bar = 2.467308167 atm.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert bars to atmospheres?

To convert bars to atmospheres, divide the value by 1.01325: atm = bar ÷ 1.01325. For example 2.5 bar = 2.467308167 atm.

What is 1 bar in atmospheres?

1 bar = 0.9869232667 atm. The other way round, 1 atm = 1.01325 bar.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of pressure here?

Yes – choose any of the 13 units of pressure in the From and To lists, or switch to another measurement at the top.

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