Standard atmospheres to Bars – standard atmosphere to bar Converter

1 atm = 1.01325 bar

bars (bar)1.01325

Formula

bar = atm × 1.01325

Standard atmospheres to bars conversion table

standard atmospheres (atm)bars (bar)
0.25 atm0.253312 bar
0.5 atm0.506625 bar
1 atm1.01325 bar
2 atm2.0265 bar
5 atm5.06625 bar
10 atm10.1325 bar
20 atm20.265 bar
50 atm50.6625 bar
100 atm101.325 bar
200 atm202.65 bar
500 atm506.625 bar
1000 atm1013.25 bar
2500 atm2533.13 bar
5000 atm5066.25 bar
10000 atm10132.5 bar

Standard atmospheres and bars are both pressure units. One standard atmosphere equals 1.01325 bars; enter any value above for an instant result, or use the table for common conversions.

Sanity-check examples

  • 1 atm = 1.01325 bar
  • 10 atm = 10.1325 bar
  • 2.5 atm = 2.53313 bar

Common pitfalls and look-alike units

One standard atmosphere is exactly 101325 Pa while 1 bar is 100000 Pa — about 1.3% apart, so do not mix them. Tire pressures are often quoted in psi or bar (1 bar ≈ 14.5 psi, 1 psi ≈ 6.895 kPa); millimeter of mercury uses the conventional value 1 mmHg = 133.322387415 Pa.

Frequently asked questions

How many bars are in a standard atmosphere?

1 standard atmosphere (atm) equals 1.01325 bar (bar).

How do I convert standard atmospheres to bars?

Multiply the standard atmosphere value by 1.01325 to get bar — for example, 2 standard atmospheres = 2.0265 bar.

How do I convert bars back to standard atmospheres?

1 bar is approximately 0.986923 standard atmosphere. Use the swap button or the reverse conversion page linked on this page.

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