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Standard atmospheres to Bar

One standard atmosphere is 1.01325 bar. Pressure units for tyres, weather and diving. Tyre placards are usually in psi or bar; barometers report in hPa or mmHg.

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1.01325

1 standard atmosphere = 1.01325 bar · open this conversion

Formula

bar = standard atmospheres × 1.01325

The millimetre of mercury used here is the conventional 133.322387415 Pa, defined from mercury density and standard gravity. It is very slightly larger than the torr, which is defined as exactly 1/760 of an atmosphere — so 760 mmHg is 1.00000014 atm, not exactly 1.

Standard atmospheres to Bar table

Standard atmospheresBar
1 atm1.01325 bar
2 atm2.0265 bar
5 atm5.06625 bar
10 atm10.1325 bar
15 atm15.19875 bar
20 atm20.265 bar
25 atm25.33125 bar
28 atm28.371 bar
30 atm30.3975 bar
32 atm32.424 bar
35 atm35.46375 bar
40 atm40.53 bar
45 atm45.59625 bar
50 atm50.6625 bar
60 atm60.795 bar
80 atm81.06 bar
100 atm101.325 bar
500 atm506.625 bar
760 atm770.07 bar
1,000 atm1,013.25 bar
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Other pressure conversions

Frequently asked questions

How many bar are in a standard atmosphere?
One standard atmosphere is 1.01325 bar. bar = standard atmospheres × 1.01325.
How do I convert standard atmospheres to bar?
Multiply the number of standard atmospheres by 1.01325. For example, 10 atm × 1.01325 = 10.1325 bar.
What is the difference between standard atmospheres and bar?
Standard atmosphere (atm) and Bar (bar) both measure pressure. Pressure units for tyres, weather and diving. Tyre placards are usually in psi or bar; barometers report in hPa or mmHg.
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