1 Bar to Standard Atmospheres

1 bar ≈ 0.98692 atm

Calculation: atm = 1 bar × 0.986923 ≈ 0.98692 atm

Bar to Standard Atmosphere Converter

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How much pressure is 1 bar?

14.5 psi (100 kPa) is comparable to standard atmospheric pressure at sea level (101.325 kPa).

What does 1 bar look like?

Illustration of standard atmospheric pressure
14.5 psi (100 kPa) is comparable to standard atmospheric pressure at sea level (101.325 kPa).

Did you know? Standard atmosphere (1 atm) is 101.325 kPa.

Sea-level atmospheric pressure is 101.325 kPa = 14.696 psi = 760 mmHg = 1 atm exactly.

How to Convert Bar to Standard Atmosphere

1 bar = 0.986923 standard atmospheres

Standard Atmosphere = Bar × 0.986923

Example: 1 bar × 0.986923 = 0.98692 atm

Reverse Conversion

To convert standard atmospheres back to bar:

  • Remember, 1 standard atmosphere equals 1.01325 bar.
  • To convert 0.98692 atm to bar, multiply 0.98692 x 1.01325, resulting in 1 bar.

1 bar is also equal to:

About these units

Bar: Metric pressure unit equal to exactly 100,000 pascals.

Standard atmosphere: Standard unit of atmospheric pressure defined as exactly 101,325 pascals.

Frequently Asked Questions

How much is 1 bar in standard atmospheres?

1 bar equals 0.98692 standard atmospheres. This is calculated by multiplying 1 by the conversion factor 0.986923.

What does 1 bar look like in standard atmospheres?

1 bar (0.98692 standard atmospheres) is low-pressure applications — car tires are typically 2.0-2.5 bar.

How do you calculate 1 bar to standard atmospheres?

Multiply 1 by the conversion factor 0.986923. The calculation is 1 × 0.986923 = 0.98692 standard atmospheres. This factor is defined by international measurement standards.

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1 bar = 0.986923 standard atmospheres
1 bar = 0.986923 standard atmospheres — conversion chart

Nearby Conversions

2 bar1.974 standard atmospheres 3 bar2.961 standard atmospheres 4 bar3.948 standard atmospheres 5 bar4.935 standard atmospheres 6 bar5.922 standard atmospheres 7 bar6.908 standard atmospheres 8 bar7.895 standard atmospheres 9 bar8.882 standard atmospheres 10 bar9.869 standard atmospheres 11 bar10.86 standard atmospheres

For general conversions between bar and standard atmospheres, see the bar to standard atmospheres converter.

Also convert Bar to:

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 atm = 101 325 Pa by definition (BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.